MAPPER - functions

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DTM drawing functions



Define Grid
Grid Collect
Grid Delete
Triangulation
Display Triangulation Form
Set Plane
Spot
Vertical Move Element
Different Z

See:
Mapper - Functions



Define Grid

Command:

DEFINEGRID

Icon:

Parameters:

None

Operation:

Defines parameters of a collected grid

This function lets you define a points grid with a given frequency. You can define any number of grid in one image.

DIALOGUE

Col spacing
Space between grid columns.

Row spacing
Space between grid rows.

Rect
Points grid will be inserted after indicating the angles of a rectangle.

Shape
Grid will be inserted as a polygon.

By elements
First indicate closed polylines where you want to place the grid's points and confirm by DATAPOINT. Then indicate closed polylines without grid's points and confirm by DATAPOINT.

XY plane
You can define a grid's plane in a given reference plane - option avaialble in DEPHOS - TERRA only!!




Grid collect

Command:   GRIDCOLLECT
Icon:

   

Parameters:

None

Operation:

Collects height points in a grid.

The function will first ask you about a grid you want to edit. If the grid selection dialogue is empty it means you have to define a grid. To select a grid choose it from a list and click twice.

The task consists in correcting grid's points location considering the critieria of "skipping" points".
For example, if you inserted a new grid and you want to edit it, just select Not edited and click Find first. The programme will set the cursor and the screen on the first point and will make its movement possible. Now you can point a new location of the point selecting DATAPOINT or skip the point by RESET.
With this function you may later browse the skipped points or the points not edited yet.

DIALOGUE

R
Free radius, it is the maximum distance of the cursor from the grid's node.

Edited
Corrected points are taken into consideration.

Skipped
Points skipped in edition of a grid are taken into consideration.

Not edited
Points not edited yet are taken into consideration.

Find First
Makes you skip to the firts point meeting one of these three criteria.

See:
Mapper - DTM drawing function



Grid Delete

Command:

GRIDDELETE

Icon:

Parameters:

None

Operation:

Deletes a points grid

Deletes all the points in accordance with a given criteria. Selection of all criteria deletes the whole grid. To delete a grid, you should first select it, see Grid Collect

DIALOGUE

Edited
Corrected points are taken into consideration.

Skipped
Points skipped in edition of a grid are taken into consideration.

Not edited
Points not edited yet are taken into consideration.

Delete
Deletes selected elements.

See:
Mapper - DTM drawing function



Triangulation

Command:

GRIDDELETE

Icon:

Parameters:

None

Operation:

runs the triangulation application, see contouring

See:
Mapper - DTM drawing function



Display Triangulation Form

Icon:
   

Operation:   displays a closed triangulation application window, see contouring

See:
Mapper - DTM drawing function



Set Plane

Command:

SETPLANE

Icon:

Parameters:

plane definition modes - see below

Operation:

defining a plane e.g. H plane (Z=const) block the cursor on a height currently set in the programme. To define a plane, first select the option of blocking the cursor, in this example H plane, then you will be asked about the value of Z Select Point With Z. Select the height, the programme informs that the plane has just been defined The plane is now defined. To activate the defined plane select the Active field on. The remaining planes are defined in the same manner, using programme's suggestions in the lower line.

See:
Mapper - DTM drawing function



Spot

Command:

SPOT

Icon:

Parameters:

None

Operation:

Introduces points with height description

See:
Mapper - DTM drawing function



Verticaly Move Element

Command:

MOVEV

Icon:

Parameters:

None

Operation:   change of the point's vertical location

See:
Mapper - DTM drawing function



Different Z

Command:

DIFFZ

Icon:

Parameters:

None

Operation:   Introduces information about selected points' height difference

See:
Mapper - DTM drawing function