SERAL STAGE

GROUP LABEL - A single seral stage number (1-40) [1-250] or a seral stage group label for which you want to specify a maximum acreage limit which can exist in the planning area at the end of the period for the periods specified.

OR=0, AND=1 - Logical operator to specify if you want the acreage limit to apply to polygons having the seral stage and the attribute as compared to the seral stage or the attribute. Usually the AND option is used in this editor.

Example: The sum of the acres of all polygons with seral stage 5 and attribute group 7 cannot exceed 500 acres at the end of period 1.

Example: The sum of the acres of all polygons with seral stage group A or attribute 4 cannot exceed 300 acres at the end of each period for periods 1-4.

POLYGON ATTRIBUTE

GROUP LABEL - A single attribute number (1-50) or an attribute group label for which you want to specify a maximum acreage limit which can exist in the planning area at the end of each period for the periods specified.

EFFECTIVE PERIOD - The period(s) for which the constraint is to be active. If the period is blank it applies to all periods.

MAX ALLOWABLE ACRES

IN PLANNING AREA - The upper limit in acres for the constraint during the period(s) specified.

NOTE: If the initial seral stages on your planning area violate your own constraints, SNAP will continue with the analysis, but will not add any additional acres to increase the deviations from your acreage limits.

Special Function Keys:

F1 - Not used.

F2 - Used to clear the editor of all data.

F3 - Used to access and load other .SER files in the current directory.

F4 - This key allows you to save the current file immediately with the option of changing the filename. If you change the filename, then you will be asked if you wish to update the project filenames (this effectively means "do you want this new file to be retrieved when you re-enter this editor at some later date").

F5 - Used to make a hard copy of the .SER file to the specified output device.

F6 - Not used.

F7 - Used to access the editor to define Group Members.

F8 - Not used.

F9 - Not used.

F10 - Used to return to the Main Menu. If you have made any changes to your data then they will be saved to the current filename automatically as you return to the main menu. To leave without saving changes use ESC, not F10.

ALT F1 - Used to find a value or alphanumeric entry in the column with the

cursor. If you want to find the first blank space in the column below

the present cursor location, press enter at the command.

ALT F2 - Used to temporarily access the Definitions Editor.

ALT F3 - Used to jump to a line number.

ALT F4 - Not used.

ALT F5 - Used to copy lines within the editor.

ALT F6 - Used to access the file utilities.

ALT F7 - Not used.

ALT F8 - Used to jump to the last line in the editor.

ALT F9 - Used to fill a range of lines with a value.

ALT F10 - Used to access the help screen.

Sivlicultural Treatments Goals Editor -- Column Definitions

SILV TREATMENT

GROUP LABEL - A single silvicultural treatment identifier (1-40) or a silvicultural treatment group label for which you want to specify a maximum acreage limit which can be

treated for the periods specified.

OR=0, AND=1 - Logical operator to specify if you want the acreage limit to apply to polygons having the silv treat or the attribute as compared to the silv treat and the attribute. The default is the OR option.

Example: The sum of the acres of all polygons with silv treat group B or attribute 4 cannot exceed 300 acres during each period for periods 1-4.

Example: The sum of the acres of all polygons with silv treat 5 and attribute group C can not exceed 500 acres during period 1.

POLYGON ATTRIBUTE

GROUP LABEL - A single attribute identifier (1-50) [1-100] or an attribute group label for which you want to specify a maximum acreage limit which can treated in the planning area at the end of each period for the periods specified.

EFFECTIVE PERIOD - The period(s) for which the goal is to be active. If the period is blank the constraint applies for all periods.

MAX TREATED ACRES

IN PLANNING AREA - The upper limit in acres treated for the constraint during the period(s) specified.

Special Function Keys:

F1 - Not used.

F2 - Used to clear the editor of all data.

F3 - Used to access and load other .TRT files in the current directory.

F4 - This key allows you to save the current file immediately with the option of changing the filename. If you change the filename, then you will be asked if you wish to update the project filenames (this effectively means "do you want this new file to be retrieved when you re-enter this editor at some later date").

F5 - Used to make a hard copy of the .TRT file to the specified output

device.

F6 - Not used.

F7 - Used to access the editor to define Group Members.

F8 - Not used.

F9 - Not used.

F10 - Used to return to the Main Menu. If you have made any changes to your data then they will be saved to the current filename automatically as you return to the main menu. To leave without saving changes use ESC, not F10.

ALT F1 - Used to find a value or alphanumeric entry in the column with the

cursor. If you want to find the first blank space in the column below

the present cursor location, press enter at the command.

ALT F2 - Used to temporarily access the Definitions Editor.

ALT F3 - Used to jump to a line number.

ALT F4 - Not used.

ALT F5 - Used to copy lines within the editor.

ALT F6 - Used to access the file utilities.

ALT F7 - Not used.

ALT F8 - Used to jump to the last line in the editor.

ALT F9 - Used to fill a range of lines with a value.

ALT F10 - Used to access the help screen.

Group Members Editor -- Column Definitions

GROUP LABEL - An alphanumeric label, 5 characters maximum, you want to use in the Seral Stage or Silvicultural Treatment Editors while formulating a goal.

GROUP MEMBERS - List of group members.

OR=0, AND=1 - Defines eligibility criteria. An OR means that a polygon must have one or more group member identifiers to be subject to the goal. An AND means a polygon must satisfy all group member identifiers before it is subject to a goal.

Special Function Keys:

F1 - Not used.

F2 - Used to clear the editor of all data.

F3 - Used to access and load other .GRP files in the current directory.

F4 - This key allows you to save the current file immediately with the option of changing the filename. If you change the filename, then you will be asked if you wish to update the project filenames (this effectively means "do you want this new file to be retrieved when you re-enter this editor at some later date").

F5 - Used to make a hard copy of the .GRP file to the specified output device.

F6 - Not used.

F7 - Not used.

F8 - Not used.

F9 - Not used.

F10 - Used to return to the Main Menu. If you have made any changes to your data then they will be saved to the current filename automatically as you return to the main menu. To leave without saving changes use ESC, not F10.

ALT F1 - Used to find a value or alphanumeric entry in the column with the cursor. If you want to find the first blank space in the column below the present cursor location, press enter at the command.

ALT F2 - Used to temporarily access the Definitions Editor.

ALT F3 - Used to jump to a line number.

ALT F4 - Not used.

ALT F5 - Used to copy lines within the editor.

ALT F6 - Used to access the file utilities.

ALT F7 - Not used.

ALT F8 - Used to jump to the last line in the editor.

ALT F9 - Used to fill a range of lines with a value.

ALT F10 - Used to access the help screen.

Adjacency Editor

Column Headings - Attribute Values and Code Definitions

MAXIMUM SIZE OF OPENING - Used to define maximum size of opening for the attribute.

SERAL STAGES - Used to define which seral stages are in the "greenup period" for the opening.

This editor is used to define what types of polygons can participate in an opening, how large the opening can be and what seral stages are considered as being in an opening.

In the example above, polygons with attribute value 2 include all polygons in the Visual zone. No opening can be larger than 20 acres. Any polygon in seral stages 1-3 is considered to contribute to an opening.

If the size of any polygon exceeds the maximum size of opening permitted for its attribute, it will NOT be scheduled. If you want a polygon which exceeds the maximum size of opening to be eligible to be scheduled, use a negative number for the maximum size of opening.

Example #1

Objective-- In general, you want no opening to exceed 20 acres, but you have several individual polygons more than 20 acres. You want these large polygons to be eligible to be scheduled.

Action-- Enter -20 for the maximum size of opening, SNAP will group polygons into groups up to 20 acres. If a polygon greater than 20 acres is encountered, it will be eligible to go by itself.

Example #2

Objective-- You have some large and small polygons with attribute 10. You want no polygon with attribute 10 to be adjacent to another.

Action-- Enter -1 for the maximum size of opening. If not polygon with attribute 10 is less than 1 acre, then SNAP will not schedule any polygon with attribute 10 adjacent to another during the period.

To designate which seral stages define an opening (and implicitly how long a treated polygon remains in an opening) place the cursor at the cell location and press the space bar to toggle on or off the word "limit".

Normally SNAP considers adjacent polygons with different attributes as eligible to belong to different openings. For example, if a polygon in the near view is adjacent to a polygon in the middle view and the near view is restricted to 10 acres and the middleground is restricted to 30 acres, SNAP might permit an opening of 40 acres (10 + 30) to exist at the interface. To prevent this, use SF key F6 to access the Attribute Tie Definitions Editor.

Conditional treatments can be specified through the CONDITIONAL TREATMENTS option in the ADJACENCY editor (Alt F7). This option accesses the Conditional Treatments Graphic Editor which permits point and click identification of groups of polygons which must have the same treatment in a given period. That is, if polygon A is treated with treatment X then polygon B must also be treated with treatment X. Up to 500 groups of polygons can be specified.

SNAP III permits simulation of the Washington State Forest Practice rules governing clearcut size based upon the proportion of the perimeter of a candidate clearcut in various seral stages. Four groups of seral stages can be defined through creation of an AGECLASS. file which is placed in the SNAP directory. The format of the AGECLASS. file is shown below. The age class row titles use the age class breaks in the Washington State rules: 5, 5-14, 15-29 and >=30 years. The seral stage members of each age class group are user defined. In general, the Washington State rules permit a clearcut to be scheduled if 90% of the perimeter is at least 5 years old, or 60% of the perimeter is 15 years old or 30% of the perimeter is at least 30 years old. The maximum size of opening is controlled through the Adjacency Editor. Exceptions permitting larger clearcut if less than 10 percent of the perimeter of each clearcut shares a common boundary between them are simulated approximately by controlling the length of the minimum size for Adjacency in the General Setup Editor. This option is limited to 1000 polygons.

If the AGECLASS file is in the SNAP directory, the Washington State perimeter rules are being used. If the AGECLASS file is not in the SNAP directory, the Washington State perimeter rules are not used.

Example of AGECLASS file.

Special Function Keys (Adjacency editor)

F1 - Used to access the Attribute editor.

F2 - Used to clear the editor of all data.

F3 - Used to access and load other .ADJ files in the current directory.

F4 - This key allows you to save the current file immediately with the option of changing the filename. If you change the filename, then you will be asked if you wish to update the project filenames (this effectively means "do you want this new file to be retrieved when you re-enter this editor at some later date").

F5 - Used to make a hard copy of the .ADJ file to the specified output device.

F6 - Accesses the Attribute Tie Definitions Editor.

F7 - Not used.

F8 - Not used.

F9 - Not used.

F10 - Used to return to the Main Menu. If you have made any changes to your data then they will be saved to the current filename automatically as you return to the main menu. To leave without saving changes use ESC, not F10.

ALT F1 - Not used.

ALT F2 - Used to temporarily access the Definitions editor.

ALT F3 - Not used.

ALT F4 - Not used.

ALT F5 - Not used.

ALT F6 - Used to access the file utilities.

ALT F7 - Used to access Conditional Treatments Editor.

ALT F8 - Not used.

ALT F9 - Not used.

ALT F10 - Used to access the help screen.

Attribute Tie Definitions Editor

 

 

 

 

 

 

 

 

 

 

 

 

 

ATTR NUMBER - Attribute Value

CONTROL ATTRIBUTE - Attribute you want to tie to other attributes

BORDERING ATTRIBUTE

VALUES - Set of attribute values in this polygon or bordering polygons for which you want the most restrictive opening size for the set to control the size of the combined opening.

This editor is used to define the relationships between attributes for determining the maximum size opening which can occur when polygons of different attributes and the same seral stage are adjacent to one another or for polygons which have more than one attribute. The tie does not apply if adjacent polygons have different seral stages.

In the example above, polygons with attribute value 1 are tied to attribute 2, polygons with attribute 2 are tied to attribute 1 and attribute 3 and polygons with attribute 3 are tied to attribute 2.

Special Function Keys

F1 - Not used to find some text.

F2 - Used to clear the editor of all data.

F3 - Used to access and load other .TIE files in the current directory.

F4 - This key allows you to save the current file immediately with the option of changing the filename. If you change the filename, then you will be asked if you wish to update the project filenames (this effectively means "do you want this new file to be retrieved when you re-enter this editor at some later date").

F5 - Used to make a hard copy of the .TIE file to the specified output device.

F6 - Not used.

F7 - Not used.

F8 - Not used.

F9 - Not used.

F10 - Used to return to the Main Menu. If you have made any changes to your data then they will be saved to the current filename automatically as you return to the main menu. To leave without saving changes use ESC, not F10.

ALT F1 - Not used.

ALT F2 - Used to temporarily access the Definitions editor.

ALT F3 - Not used.

ALT F4 - Not used.

ALT F5 - Used to copy lines.

ALT F6 - Used to access the file utilities.

ALT F7 - Not used.

ALT F8 - Used to jump to the last line in the editor.

ALT F9 - Used to fill a set of values.

ALT F10 - Used to access the help screen.

In SNAP III conditional treatments can be specified through the CONDITIONAL TREATMENTS option in the ADJACENCY editor (Alt F7). This option accesses the Conditional Treatments Graphic Editor which permits point and click identification of groups of polygons which must have the same treatment in a given period. That is, if polygon A is treated with treatment X then polygon B must also be treated with treatment X. Up to 500 groups of polygons can be specified.

Conditional Treatments Editor

DISABLE GROUP - Used to make the current group "invisible" for the analysis. A disabled group means that the conditional requirement does not hold. A disabled group number is indicated by a parentheses around the group number, i.e. (2).

DISABLE ALL - Used to make all group conditional treatments "invisible" for the current analysis.

CLEAR GROUPS - Used to clear the group definitions. Do NOT use this option if you only want to make the groups invisible, use the Disable group options.

CHANGE GROUP - Used to select the group number you want to display on the screen.

RECENT GROUP LIST - A display of up to ten of the most recent groups that have been identified. A maximum of 500 groups can be specified. To display a group on the screen, use the Choose Group option.

All other editor options have the same definitions as the Attribute Editor.

In SNAP III the minimum size of area treated by a group of silvicultural treatments can be controlled through this editor. The use of this editor is identical to the Adjacency editor except that the minimum area to be treated is specified instead of the maximum area and silvicultural treatments are specified rather seral stages..

Special Function Keys

F1 - Used to access the Attribute editor.

F2 - Used to clear the editor of all data.

F3 - Used to access and load other .MTS files in the current directory.

F4 - This key allows you to save the current file immediately with the option of changing the filename. If you change the filename, then you will be asked if you wish to update the project filenames (this effectively means "do you want this new file to be retrieved when you re-enter this editor at some later date").

F5 - Used to make a hard copy of the .MTS file to the specified output device.

F6 - Accesses the Attribute Tie Definitions Editor.

F7 - Not used.

F8 - Not used.

F9 - Not used.

F10 - Used to return to the Main Menu. If you have made any changes to your data then they will be saved to the current filename automatically as you return to the main menu. To leave without saving changes use ESC, not F10.

ALT F1 - Not used.

ALT F2 - Used to temporarily access the Definitions editor.

ALT F3 - Not used.

ALT F4 - Not used.

ALT F5 - Not used.

ALT F6 - Used to access the file utilities.

ALT F7 - Not used.

ALT F8 - Not used.

ALT F9 - Not used.

ALT F10 - Used to access the help screen.

HABITAT CONNECTIONS

Sometimes, you may want to designate critical polygons between which a connection (corridor) must be left with the requirement that the connecting polygons be in some eligible seral stage. SNAP permits you to identify up to five groups of critical polygons. During solution SNAP will identify the "best" set of connecting polygons for each group according to one of two criteria. The default criteria is to identify habitat connections which maximize present net worth for the overall problem. The optional criteria is to minimize a user-defined set of values. Each connection can have different seral stage eligibility criteria and different user-defined value criteria. The connections can change location from period to period.

Three text editors and one graphic interface provide you with the ability to enter and edit your data.

1. Habitat Connections Text Table -- To manually enter polygon names for critical habitat.

2. Habitat Connections Graphic Interface -- To graphically designate polygons for critical habitat.

3. Habitat Connection Eligibility Editor -- To designate eligible seral stage by habitat connection.

4. Habitat Connection Values Editor -- To specify optional values for SNAP to use for polygon selection for the connections instead of minimizing present net worth loss.

All polygons in the Sale File are eligible for a habitat connection, regardless of their status as long as they meet the seral stage eligibility criteria. Polygons which you designate as critical polygons to be connected do not have to satisfy your seral stage criteria. Only the polygons which SNAP chooses to connect the critical polygons must meet your habitat connection criteria.

The purpose of the Habitat Connections Text Table is to be able to manually enter critical habitat polygons from the keyboard.

CONNECTION GROUP # - Used to identify critical polygons which must be left connected for any feasible solution. Up to five groups can be identified. Groups can share the same polygons. If the polygons you identify in a group are not connected, SNAP will connect them at Analysis time according to the criteria in the Habitat Connection Eligibility editor (accessed through F8)

Special Function Keys:

F1 - Not used.

F2 - Used to clear the editor of all data.

F3 - Used to access and load other .COR files in the current directory.

F4 - This key allows you to save the current file immediately with the option of changing the filename. If you change the filename, then you will be asked if you wish to update the project filenames (this effectively means "do you want this new file to be retrieved when you re-enter this editor at some later date").

F5 - Used to make a hard copy of the .COR file to the specified output device.

F6 - Used to access the graphic interface for Habitat Connections.

F7 - Not used.

F8 - Used to access an editor to designate eligible seral stages for each habitat connection.

F9 - Used to access an editor to optionally specify user - defined values for each habitat connection by seral stage.

F10 - Used to return to the Main Menu. If you have made any changes to your data then they will be saved to the current filename automatically as you return to the main menu. To leave without saving changes use ESC, not F10.

ALT F1 - Used to find a value or alphanumeric entry in the column with the cursor. If you want to find the first blank space in the column below the present cursor location, press enter at the command.

ALT F2 - Used to temporarily access the Definitions Editor.

ALT F4 - Used to sort all data using the column with the cursor as the key. You can sort either by ascending or descending order.

ALT F5 - Used to copy lines between the specified beginning and ending line and inserts the copied lines beginning at the current cursor location.

ALT F6 - Used to access the file utilities.

ALT F8 - Jumps to the last line in the editor with a non-blank entry.

ALT F9 - Used to fill in a column with a specified value or alphanumeric entry.

ALT F10 - Used to access the help screen.

Habitat Connections (Graphic Interface)

 

 

 

 

 

 

 

 

 

 

 

 

 

Box Definitions:

GROUP #1-5 - Identifies which group of polygons must remain connected for any solution to be feasible. Up to five separate groups can be identified. To identify the group number you want, move the mouse arrow to the group box and click it on using the left mouse button. The box switches from green to red (active). Also make sure the box in the lower left hand corner identified as OP: xxxxx says OP: SELECT. If not, move the mouse arrow to the OP: box and click on this option. To designate the critical polygons for the current group, move the mouse "hand" to the polygon and press the left mouse button. Similarly add any other polygons to the group. The polygons names for the group are displayed in the column "Node List" as you identify them.

If you want to remove a polygon from a group, make sure the correct group number is active (box is red). Then move to the OP: xxxxx box in the lower left corner and toggle to either the RESET or INVERT option and move the mouse "hand" to the polygon to be deleted and press the left button again. If the polygon turns from blue (selected) to the neutral dots it has be removed from the list. You can verify the polygon is off the list This toggles the polygon off the list. During analysis, SNAP will identify the "best" set of polygons to add to each group to connect the critical polygons if your selections are not connected. Groups can share the same polygons.

NODE LIST - This identifies which polygons are currently in the group designated by the red box. The node list can display up to 20 polygons for a given group. More than 20 polygons can be designated, but they will not be displayed. If you do not want the Node List displayed, move the cursor arrow to the LIST box and press your left mouse button. This will toggle the Node List option to off.

If you want to remove a polygon from a NODE LIST, move the mouse arrow to the OP: xxxx box and click on either SELECT or INVERT and then move the mouse cursor to the polygon you want to remove and press the left mouse button. You will see the polygon turn from blue to the background dot pattern.

UNIT LABEL - The unit name under UNIT LABEL is the last polygon you have identified for a group.

ARROW KEYS - Increases the viewing area in the direction of the arrow. To increase the viewing area, move the mouse arrow to the arrow direction you wand click on the left button.

ZOOM IN - Used to shrink the viewing area (make polygons larger).

ZOOM OUT - Used to increase the viewing area (make polygons smaller).

BY HAND - Used to specify if you will identify individual polygons BY HAND is the default choice.

BY REGION - Used to specify if you will identify polygons by region as opposed to BY HAND. Selecting polygons by region is done by first activating the BY REGION box by clicking on it to turn it red. Then the mouse cursor is moved to the upper left corner of the region to be identified and the left button of the mouse is then held down. This activates the region selection and anchors the upper left corner of the region. Keeping the left cursor button depressed, move the cursor symbol to the lower right corner of the region and release the cursor button. Now double-click then left mouse button and release it. All polygons which have some portion inside the rectangular dotted region will be included in the polygon group as critical polygons for that group.

OP: XXXXX - Accesses three options SELECT, RESET, INVERT. The default option is SELECT. If it is active, polygons identified BY HAND or BY REGION will switch from neutral to blue when selected and be added to the NODE LIST. If the RESET option is active then polygons identified BY HAND or BY REGION will revert to the neutral color and removed from the NODE LIST. If the INVERT option is active then any polygons identified BY HAND or BY REGION will change to the opposite color, i.e. those on the NODE LIST will leave it and those not on the NODE LIST will enter.

TEXT EDITOR - Accesses the Habitat Connection Text Editor which allows to enter polygon names directly into each group list from the keyboard.

STICK QUALITY - Uses stick data to make the polygon map. This allows faster polygon identification than with point data and is recommended for slower computers.

POINT QUALITY - Uses point data to make the polygon map.

GO TO MENU - Saves your node group data and returns to the Main Menu.

Habitat Connection Eligibility Editor

Column Definitions:

SERAL STAGE - Seral stage identifier (1-40) [1-250].

COLUMNS 1-5 - Used to designate if seral stage is eligible for habitat connection. The default is "Elig.". To make a seral stage ineligible, move the cursor to the column and row location and press the TAB key.

F1 - Not used.

F2 - Used to clear all current values and alphanumeric entries from editor.

F3 - Used to access and load other .STG files in the current directory.

F4 - This key allows you to save the current file immediately with the option of changing the filename. If you change the filename, then you will be asked if you wish to update the project filenames (this effectively means "do you want this new file to be retrieved when you re-enter this editor at some later date").

F5 - Used to make a hard copy of the .STG file to the specified output device.

F6 - Not used.

F7 - Not used.

F8 - Not used.

F9 - Not used.

F10 - Used to return to the Main Menu. If you have made any changes to your data then they will be saved to the current filename automatically as you return to the main menu. To leave without saving changes use ESC, not F10.

ALT F1 - Used to find a value or alphanumric entry in the column with the cursor. If you want to find the first blank space in the column below the present cursor location, press enter at the command.

ALT F2 - Used to temporarily access the Definitions Editor to review code names and definitions.

ALT F3 - Not used in this editor.

ALT F4 - Not used in this editor.

ALT F5 - Used to copy lines between the specified beginning and ending line and inserts the copied lines beginning at the current cursor location.

ALT F6 - Used to access a file utility which can be used to delete, view, and hide files.

ALT F7 - Not used in this editor.

ALT F8 - Jumps to the last line in the editor with a non-blank entry.

ALT F9 - Used to fill in a column with a specified value or alphanumeric entry.

ALT F10 - Used to access the help screen.

Habitat Connection Values Editor

Column Definitions:

SERAL STAGE - Seral stage identifier (1-40) [1-250].

COLUMNS 1-5 - If values are left zero then it is assumed that the criteria for polygons to enter the habitat connection will be eligible seral stage and to minimize loss in net present worth from the overall problem. If you want to override the net worth criteria for polygon selection for the habitat connections you can define your own values per acre. To do this, fill in positive values for eligible seral stages in the appropriate columns. The polygons having the most desirable characteristics for the connection should have the lowest values per acre. SNAP multiplies the value per acre by the number of acres in the polygon to determine the polygon value for eligible polygons.

F1 - Not used.

F2 - Used to clear all current values and alphanumeric entries from editor.

F3 - Used to access and load other .VAL files in the current directory.

F4 - This key allows you to save the current file immediately with the option of changing the filename. If you change the filename, then you will be asked if you wish to update the project filenames (this effectively means "do you want this new file to be retrieved when you re-enter this editor at some later date").

F5 - Used to make a hard copy of the .VAL file to the specified output device.

F6 - Not used.

F7 - Not used.

F8 - Not used.

F9 - Not used.

F10 - Used to return to the Main Menu. If you have made any changes to your data then they will be saved to the current filename automatically as you return to the main menu. To leave without saving changes use ESC, not F10.

ALT F1 - Used to find a value or alphanumric entry in the column with the cursor. If you want to find the first blank space in the column below the present cursor location, press enter at the command.

ALT F2 - Used to temporarily access the Definitions Editor to review code names and definitions.

ALT F3 - Not used in this editor.

ALT F4 - Not used in this editor.

ALT F5 - Used to copy lines between the specified beginning and ending line and inserts the copied lines beginning at the current cursor location.

ALT F6 - Used to access a file utility which can be used to delete, view, and hide files.

ALT F8 - Jumps to the last line in the editor with a non-blank entry.

ALT F9 - Used to fill in a column with a specified value or alphanumeric entry.

ALT F10 - Used to access the help screen.

SNAP provides the ability to evaluate big game habitat effectiveness if you specify cover and forage by seral stage and band widths of cover and forage. The cover and forage definitions are specified in this editor. The band widths and acreage weights are specified in the Habitat Bands Editor accessed through F7. The results given in the Report Writer.

Column Definitions:

SERAL STAGE - Seral stage identifier (1-40)[1-250].

If you wish to change the label of the seral stage then go back to the definitions editor (ALT-F2) and modify it there.

FORAGE-COVER

ELIGIBILITY - For each seral stage defined in the Definitions Editor, enter either a forage effectiveness multiplier or a cover effectiveness multiplier. If nothing is entered here, then it is assumed that the seral stage is neither forage nor cover. The multiplier refers to how "good" the seral stage is when compared to other seral stages. A multiplier of 1 is typically best, while others are ranked according to some relative scale.

DESCRIPTION - A short description can accompany each seral stage explaining how it got to be that way or other such description.

F1 - Not used.

F2 - Used to clear all current values and alphanumeric entries from editor.

F3 - Used to access and load other .COV files in the current directory.

F4 - This key allows you to save the current file immediately with the option of changing the filename. If you change the filename, then you will be asked if you wish to update the project filenames (this effectively means "do you want this new file to be retrieved when you re-enter this editor at some later date").

F5 - Used to make a hard copy of the .COV file to the specified output device.

F6 - Not used.

F7 - Used to access editor to specify width of forage and cover bands.

F8 - Not used.

F9 - Not used.

F10 - Used to return to the Main Menu. If you have made any changes to your data then they will be saved to the current filename automatically as you return to the main menu. To leave without saving changes use ESC, not F10.

ALT F1 - Used to find a value or alphanumric entry in the column with the cursor. If you want to find the first blank space in the column below the present cursor location, press enter at the command.

ALT F2 - Used to temporarily access the Definitions Editor to review code names and definitions.

ALT F3 - Not used in this editor.

ALT F4 - Not used in this editor.

ALT F5 - Used to copy lines between the specified beginning and ending line and inserts the copied lines beginning at the current cursor location.

ALT F6 - Used to access a file utility which can be used to delete, view, and hide files.

ALT F7 - Not used in this editor.

ALT F8 - Jumps to the last line in the editor with a non-blank entry.

ALT F9 - Used to fill in a column with a specified value or alphanumeric entry.

ALT F10 - Used to access the help screen.

Habitat Band Definitions Editor

Column Definitions:

BAND DESCRIPTION - Bands of cover are areas of eligible cover at specified distances from the perimeter of eligible forage. Bands of forage are areas of eligible forage at specified distances from the perimeter of eligible cover. Band widths for up to seven cover bands and seven forage bands can be specified. Individual band widths are entered in this editor. This differs from the convention in versions 2.01 and earlier. See example above.

BAND WIDTH - The width of the individual band. If you do not want the maximum number of bands, leave the band width blank. However, you must specify band width starting with the 1st band. Do not leave band #1 blank and then fill in band #2. Remember: The TAB key is used to delete the contents of a cell.

EFFECTIVENESS

MULTIPLIER - The multiplier that you want the acres in the band multiplied by in order to calculate the effectiveness. It is a number usually equal to one in band #1 and decreases in subsequent bands.

COLOR VALUE - The color that you want band shown in the Report Writer.

F1 - Not used.

F2 - Used to clear all current values and alphanumeric entries from editor.

F3 - Used to access and load other .BAN files in the current directory.

F4 - This key allows you to save the current file immediately with the option of changing the filename. If you change the filename, then you will be asked if you wish to update the project filenames (this effectively means "do you want this new file to be retrieved when you re-enter this editor at some later date").

F5 - Used to make a hard copy of the .BAN file to the specified output device.

F6 - Not used.

F7 - Used to show colors for the different color values.

F8 - Not used.

F9 - Not used.

F10 - Used to return to the Main Menu. If you have made any changes to your data then they will be saved to the current filename automatically as you return to the main menu. To leave without saving changes use ESC, not F10.

ALT F1 - Not used in this editor.

ALT F2 - Used to temporarily access the Definitions Editor to review code names and definitions.

ALT F5 - Used to copy lines between the specified beginning and ending line and inserts the copied lines beginning at the current cursor location.

ALT F6 - Used to access a file utility which can be used to delete, view, and hide files.

ALT F8 - Jumps to the last line in the editor with a non-blank entry.

ALT F9 - Not used in this editor.

ALT F10 - Used to access the help screen.

General Setup Editor -- Row Definitions

PERIOD NUMBER - 1-30 [1-50]. To access additional periods use the Pg Dn key or the fill option (Alt F9).

MINIMUM VOLUME

ACCEPTABLE (MBF) - No pattern will be generated that has less than this amount of volume for the specified period, in net mbf.

VOLUME GOAL (MBF) - The upper bound on timber flow during the specified period, in net mbf. SNAP will try to reach this goal.

This option is activated by specifying a first period goal and placing 99 in all following periods of the planning horizon. If SNAP cannot maintain the first period goal over the rest of the planning horizon, it will reduce the goal to a level that can be maintained over the planning horizon.

PERIOD LENGTH - The length of the period, in years.

DISCOUNT RATE - The real discount rate, in %.

COST INCREASE - Annual real cost increase, in %. This cost inflator is applied to all costs.

PRICE INCREASE - Annual real price increase, in %. This price inflator is applied to all mill prices and quality premiums.

MAX SOLUTIONS - This is the maximum number of solutions that you want to run. The default is five solutions. We recommend at least 20 for real problems after you have debugged data. See Chapter 8.

OPTIMIZE ROADS - Toggles between YES and NO. If you select NO then SNAP only considers harvest costs, haul costs, and mill values during analysis and adds the road costs on to the solution. If you select YES then SNAP includes road costs during analysis simultaneously with other costs. Solution time may increase by a factor of 5.

NON-ADJ OPENINGS

SHARE, FT - This is the minimum length stick side that CAN adjacent harvested polygons (or groups of polygons) can share during the "greenup period" defined in the Adjacency Editor. If you specify zero, it means that adjacent polygons (or groups of polygons) can not share even a common vertex (point).

INCLUDE HABITAT

CONNECTIONS - Toggles between YES and NO. If you select NO, then any polygon groups you identified in the HABITAT CONNECTION Editors will be ignored.

DESIRED WIDTH FOR

HAB CONNECTIONS - This is the minimum length stick side which is considered for determining adjacency between eligible polygons in habitat connections, ft.

ARE HABITAT CONNECTIONS

ABLE TO FLOAT - This permits habitat connections to change from period to period.

RUN H-WIRED CODES - Toggles between YES and NO. If YES then it will run Sales File exactly according to the period codes in the H-WIRED column of Screen 3 of the Sales Editor. In other words, the harvest schedule is fixed. The sales will be scheduled regardless of the constraints.

Special Function Keys:

F1 - Not used.

F2 - Used to clear the editor of all data.

F3 - Used to access and load other .GST files in the current directory.

F4 - This key allows you to save the current file immediately with the option of changing the filename. If you change the filename, then you will be asked if you wish to update the project filenames (this effectively means "do you want this new file to be retrieved when you re-enter this editor at some later date").

F5 - Not used.

F6 - Not used.

F7 - Not used.

F8 - Not used.

F9 - Used to fill a column of data over a range of time periods.

F10 - Used to return to the Main Menu. If you have made any changes to your data then they will be saved to the current filename automatically as you return to the main menu. To leave without saving changes use ESC, not F10.

ALT F1 - Not used.

ALT F2 - Used to access the Definitions Editor.

ALT F3 - Not used.

ALT F4 - Not used.

ALT F5 - Not used.

ALT F6 - Used to access file utilities.

ALT F7 - Not used.

ALT F8 - Not used.

ALT F9 - Not used.

ALT F10 - Used to access the help screen.