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Civil Corner. / Re: Projected surface area mismatch
« Last post by Lars on October 30, 2018, 07:29:38 PM »You can check your contours for duplicate points, there is a tool for that in CadTools. Duplicate points can be a problem.
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Civil Corner. / Re: Projected surface area mismatch
« Last post by gvdpeor on October 30, 2018, 07:16:29 PM »OK. Thanks for your input. I'm using an OG surface generated from contours so it is complicated and hard to debug. The error is around 1% so I will assume the result is reasonable.
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Civil Corner. / Re: Projected surface area mismatch
« Last post by Lars on October 30, 2018, 07:09:37 PM »Probably some problems with overlapping triangles. Check your indata, crossing breaklines may cause the problem. The original surface should be larger than the design so that is correct.
The "Almost Exact" option projects the design triangles to the original surface and then add all projected triangles as breaklines to the original surface and creates new triangles. This method makes it possible to create prismoids that match both surfaces. The error should contain a value of the size of the mismatching area, if this is small you may consider if you can use the volume anyway.
The "Almost Exact" option projects the design triangles to the original surface and then add all projected triangles as breaklines to the original surface and creates new triangles. This method makes it possible to create prismoids that match both surfaces. The error should contain a value of the size of the mismatching area, if this is small you may consider if you can use the volume anyway.
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Civil Corner. / Projected surface area mismatch
« Last post by gvdpeor on October 29, 2018, 11:17:19 PM »I've been getting an error when using triangle volume to compute volume between two surfaces. My Original surface is larger than my design surface by several times but I continue to get 'Projected surface area mismatch' errors when I attempt an almost exact calculation. My design surface is just a cut into the original surface and is not complicated at all.
Any idea what could cause that?
Any idea what could cause that?
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CadTools General / Re: Slope mode
« Last post by gvdpeor on September 30, 2018, 03:47:52 PM »I get it now. Thanks
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CadTools General / Re: Slope mode
« Last post by Lars on September 30, 2018, 10:12:52 AM »The reason for zeros out is probably du to elevation of your picked element. Try to toggle off the button with a "Z" on it, that will prevent CadTools from using element elevation. That button governs how to treat your picked points, 2D or as 3D (in 2D you have to type in values)
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CadTools General / Slope mode
« Last post by gvdpeor on September 29, 2018, 05:09:15 AM »I have a slope mode issue where the Start Height entry always zeros out then I use the Pick Length button to calculate a H.
distance value. I have the end height radio button selected and I have a slope value entered in the appropriate place. If I enter a starting height before I measure distance it always zeros out when I would like to use it repeatedly for different distances. Am I doing something wrong?
Thanks
Gary
distance value. I have the end height radio button selected and I have a slope value entered in the appropriate place. If I enter a starting height before I measure distance it always zeros out when I would like to use it repeatedly for different distances. Am I doing something wrong?
Thanks
Gary
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CadTools General / Re: vehicle swept paths
« Last post by Lars on September 21, 2018, 06:11:08 PM »Swept Path is outermost points of wheels and vehicle as polylines. Vehicle swept envelope is the outermost area of the swept vehicle body
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CadTools General / Re: vehicle swept paths
« Last post by Steve b183 on September 20, 2018, 11:49:16 AM »lars
it wasn't a locked layer at all....rather I'd unticked the check box for plotting the envelope !
but while your on, how do you define the "sweep" and the "envelope"
steve b
it wasn't a locked layer at all....rather I'd unticked the check box for plotting the envelope !
but while your on, how do you define the "sweep" and the "envelope"
steve b
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Civil Corner. / Re: Cross sections
« Last post by Lars on September 09, 2018, 07:10:58 PM »Use surface profile, there you can display reference files. The drawback is that you need to create a surface. However you can create a dummy surface of your polyline, offset it and triangulate.