Forming relief shading

Procedure is intended for giving the greater obviousness to electronic map by creation of the background image of a relief shading (hypsometric colouring of a surface).

The background image is created as file of RSW type, which automatically is added to the image of electronic map after completion of procedure.

All procedures, which are executed with the usual raster 24-bit image are accessible to the raster image of relief shading  (change of brightness and contrast, installation of area of displaying, etc.).

After start of procedure it is necessary to choose designed area on an electronic map (by consecutive choice of two tops of a rectangle).

It is necessary to remember, that normal execution of procedure possibly only at presence on a designed part of the open (beforehand created and added into an electronic map) matrixes of heights.

The area which has been not provided with a matrix of heights will be painted by black color.

After a choice of a part of a map the surface forming is made and the window of preliminary viewing of the image is created.

The window of preliminary viewing serves for adjustment of visual properties of the created image:

directions of lighting;

values of vertical scale (degree of "camber" of model);

color palette of the image.

After adjustment of all parameters of the image it is necessary to specify name of formed raster image and press Save button.

In case you have specified a name of existing (including already added into an electronic map) file of the raster image, it will be replaced.

Formation of the raster image is made by a copy of the screen image of model, and a step of formation of model is the fixed number. Therefore accuracy (granularity) of the received in a result the image depends on the resolution of your monitor and the area of the site chosen you.

If you want to receive more exact image, it is necessary to execute building of the image "in parts" (consistently to build the image on separate sites of a map). However separate sites should be formed with identical parameters of the image (vertical scale, parameters of lighting and color palette). Besides, sites should be approximately of one size.

Visual parameters (palette and vertical scale) can be saved into file of adjustments, and at forming the following site these parameters can be restored .