Is it possible to produce a terrain which has a down slope then a flat section and then a further down slope as shown in the attachment. This is common when a sloping site is excavated to provide for a flat house site.
Hi Bob,
A slope right across the Terrain as per your illustration is very easy.
In Plan view, select the Slopes tool from the Terrain toolbar. Click on the Terrain where you want the upward slope to start, enter in the angle of the slope (or the height of the slope where you want it to finish) then drag away from the house and click where you want the slope to finish. For the lower side, do the same but this time enter a negative and or height, click and draw away from the house.
If you have slopes going to the sides as well that is a totally different situation. To do this I find the Plateau tool is best. In effect you draw the contour lines, starting from the lowest point and 'adding' new levels, each building on the previous. The image may give you the idea.
The upcoming new release of Envisioneer has an additional Terrain option - that of loading the data points from a land survey or manually entering them. This should make getting the terrain shape to look right even easier and in fact it would exactly replicate the reality if you have the necessary data. We don't know yet, but following the practice of previous updates, the next version of TFP will hopefully have this toolset, as it generally inherits all the 3D components of Envisioneer. We will have to wait and see.
Allan
Thanks Allan, your explanation worked fine except that the slopes did not start from the points selected and drawn inside the building as shown on the attachment. I am sure there is a simple explanation. I tried a number of ways but no results.
Hi Bob,
They do round slightly at the ends. Just select the big arrow and move it further away from the house.
Allan
Quote from: Burgo on July 15, 2012, 06:52:41 PM
and drawn inside the building as shown on the attachment.
I'm guessing Allan's explanation answered your question.
But just in case, there is another occurrence when a terrain intrudes into a building....and easily fixed in program settings....check that the terrain is "cutout" from entering a building; usually comes up when there is a basement.
I think the default is set to cut out terrain, but just in case, good to know. (check mark = on/off)
Hi Bob,
I think what Doug is referring to is the option in Settings / Program Settings / Terrain to "Auto Cut Yerrain around Building" and a selector for Ground Floor, Basement etc as to which perimeter to cut. This is ticked ON by default, so I suspect that this is not the problem and you don't have the Terrain inside the building. I assume you are just referring in the elevation to the Terrain just raising around it at that end and undermining it slightly at the other.
You should be able to just move the start point of the Slope's "Arrow" so it is futher away from the building.
Allan
Hello Allan,
Yes I have the auto cut terrain around building check box ticked. This is not the problem. I have in fact tried moving the start point away from the building but the problem is still there. I note from the Envisioneer technical notes that the recommendation is to set the base terrain to the lowest point of the slope (minus figure) and then incline the slope as required. I will try this approach and see if the results are different. I assume if you use this method the wall locations would also need to be changed to compensate for the relocation of the terrain.
Hi Bob,
You can move the whole terrain up or down (Negative figure obviously) relative to the building in Settings / Program Settings / Terrain, however I don't understand the problem. You should be able to just select the terrain slope arrow (tail end) and drag it further away from the building. If you drag it so that the end of the arrow is in line with the contour line (not part way between them) you should also find the slight taper also disappears.
Allan
Allan, I believe that I have solved the problem. I had the mesh spacings too far apart and when set at 2000mm centres the problem was solved.