Slope map - PV25

11.2 Slope Map

With this process, the different slopes contained in a surface (terrain) can be analyzed. By default, the current active surface in MDT is selected, but the study surface can be changed by pressing the Surface button.

In the Orientation section , you must specify the direction in which the slopes are to be calculated in each of the triangles on the surface:

Maximum Slope: for each triangle, the orientation of the maximum slope is calculated, and the absolute value of that slope is taken into account for the representation. In this case, the slope map would have a hydrological application, rather than to determine the suitability of the land for use as a solar production facility.

North-South: for each of the triangles, the slope is calculated from north to south, and can give a negative result if the terrain goes down, or positive if the terrain goes up when it "moves" along the triangle. If the Ignore Sense option is activated, the absolute value of the slope is used, so there would be no difference between North-South mode and South-North mode.

South-North: complementary to the previous option.

East-West: For each of the triangles, the slope is calculated from east to west. If you activate the Ignore Sense option, there is no difference between this mode and West-East mode.

West-East: complementary to the previous option.

Designate: This option allows you to designate any orientation.

Once the orientation to be used has been established, in the Slope Range section you can click on the Calculate button so that the program makes a first analysis of the range of slopes present on the surface. By activating the Apply Range option , you can restrict the range of slopes to be represented, in case you prefer not to represent the entire range of the slopes.

In addition to choosing which layer of the CAD the map is represented on, you can use the corresponding buttons to assign different color palettes to the intervals of positive and negative slopes. In case the selected orientation only calculates slopes in absolute value, the button for the negative slope colors will be disabled.

Finally, you can choose between rendering the map with CAD 3D Face-type features, or creating a raster image.