The 'Slope Surfaces' pane will pop up which shows the standard settings for slope calculation. The palate is shown below.
This shows the name of the active terrain model. The terrain model is set up with the Project-ID function. To change the active terrain model, run the function 'Project-ID' from the menu 'Novapoint' and select the correct terrain model. The function 'Project-ID' can be operated without closing the slope calculation function. After selecting the new terrain model, use the button 'Update' to activate the terrain model in the slope calculation.
This function controls the parameters for the slope calculation and includes the name of the slope and the parameter set for the slope.
The name of the slope calculation is used for two things.
Each slope should have a unique name especially to save it to the terrain model and/or edit it at a later stage in the project.
The slope calculation function will suggest a name depending on the existing slope surfaces. The standard name is SlopeSurface_0 for the first slope and it will add 1 for each new slope to be calculated. Users can also type in a different name if they don’t want to use the standard name.
If the same name is used for several slopes and you wish to save each slope to the terrain model, Novapoint will prompt you to overwrite the old slope.
The name is stored in the AutoCAD drawing.
Slope Parameter Set
The slope parameter set saves all the parameters in all the palates in the slope calculation function. This makes it very easy to use the same parameters for the new calculation. The standard slope parameter set name is 'Default'. Users can type in the name they want to use or use the name the function suggests.
The slope parameter set is saved in the TMG file of the terrain model. So if the terrain model is changed and the drawing file is the same, you do not have access to all information about the slope parameters.
If two slopes are drawn after each other, the second one will get the same 'Slope Parameter Set' as the first one, unless it is changed.
You can change the slope parameter set by choosing a name in the drop-down menu. If the slope parameter set is changed, use the button 'Update' to update the calculation with the new parameters set.
By pressing this button, the function calculates the slope and draws the slope as specified in the drawing rules. The calculations are to be updated (using the button 'Update') for each and every change in the parameters.
The only time the calculation is automatically updated is when the grips of the object are moved. The calculation and the drawing will be updated automatically for each and every change in the location of the grips of the object. The same thing is true if the level (elevation) of the polyline is changed.
Terrain Model Setting Existing Terrain
Surface type - You can select how the terrain should be represented during the calculation. There are two choices available, which are shown:
Grid - In case 'Grid' is selected, specify the 'Grid' file to be used on the line underneath. The Grid file is generated with the grid function in the Terrain Model function.
Triangles - In case 'Triangles' is selected, the calculation routine will automatically perform a continuous triangulation of all terrain layers that are active. This calculation will happen in the background so tyou just have to assure that the correct groups and feature codes are active. No pre-triangulation is necessary.
State from Terrain (DTM Status) - Before the calculation, ensure that correct data is active in the Terrain model. This function only calculates terrain data that is active.
To be sure that in the future (when the function 'Slope Surfaces' is operated in future for the project) the calculations of the slope surfaces are with the same terrain data (current terrain model settings), save the state of the terrain model – e.g. by giving it the same name as the slope.
This enables the user to select between the different states in the terrain model. A state in the terrain model is the status of groups and feature codes saved to a state name in the group number/feature code dialog box in the terrain model. Press the button and the standard dialog box for group number/feature codes appear. The functions 'Save' and 'Restore' are available on the lower right side of the dialog box. A detailed description of how to use the group number/feature code dialog box with Save and Restore State is found in the help system for Novapoint Base under the Terrain Model.
If no states exist, active groups and feature codes will be used.
Grid File - This field is...