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CityEngine Rules Create Modern Streets
By EmperoR,
CityEngine Rules Create Modern Streets
Matthias Buehler provides example rules for generating detailed street geometry via parametric modeling only.
awesome video, check here :
[hide]
http://video.esri.com/watch/732/cityengine-rules-create-modern-streets
[/hide]
Site Selection for Helicopter Landings
By Svenne68,
Hi there
I'm trying to build a "model" that could do our job a bit easier in the field. I want it to find the most suitable place for a Helicopter to land. I want it to do it based on a DEM 1.6m and to locate sites with 25x25 pixels, 100x100 pixels, 1500x1500 pixels and with no obstacles.
Any ideas of "how to begin" the project ????
Converting data's files and found more.
By darksabersan,
Hello guys,
I need your help and your knowledge.
I found on this webside some data's from our dear planet:
http://celestia.h-schmidt.net/earth-vt/#download
I would like to use the "Normal Map" and the "Specular Map".
The first thing is that, there are cut in several part in *.dss file format. I can read them in Autodesk 3ds Max, but there are piece by piece.
Is there any solution to read them and to convert it as *.jpg file, or merge all in a big *.dss file ???
In fact, I'm loo
Google Image Update
By Lurker,
Recently Google Update their Image , complete list :
High resolution aerial updates:
USA: Baton Rouge, LA; Brady, TX; Downieville, CA; East Bay, CA; El Paso, TX; Greenwood, MS; Greenwood, SC; Kingman AZ; Level Land, TX; Long View, TX; Lufkin, TX; Ozona, TX; Quincy, CA; Radium Springs, NM; San Angelo, TX
Austria: Innsbruck, Linz,
Germany: Augsburg, Mannheim
Countries/regions receiving high resolution satellite updates:
Algeria, Argentina, Australia, Austria, Bangladesh, Belarus, Benin
VirtualGrid to Debut VRMesh V7.0 Survey at ILMF 2012
By Lurker,
VirtualGrid (www.vrmesh.com) will announce the availability of VRMesh v7.0 Survey at International LiDAR Mapping Forum (ILMF) 2012.
source :
www.vrmesh.com
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Hello folks! I am trying to use the Lyzenga Algorithm for estimating the depth of water in shallower areas, probably depths under 8-10 meters of lakes. First of all, how accurate is this algorithm in practice? Secondly, lets say i have the band values. can someone explain me how to retrieve those depths? I am following the "Lyzenga Algorithm for Shallow Water Mapping Using Multispectral Sentinel-2 Imageries in Gili Noko Waters" paper, but there are 3 steps of getting NDWIs, NDCIs and after filtering the Sun Glint Correction, then it finally comes to the depth calculating. it end ups in a formula of following: 𝑧 = 28.32 ∗ 𝑋1 − 36.25 ∗ 𝑋2 + 9.42 ∗ 𝑋3 + 16.35 x1 , x2, x3 are RGB values respectively. What do you guys think? can i just apply this formula ? if not, what is the purpose of all the previous steps, and will they change the rgb values anyways? -
Hello folks! I am trying to use the Lyzenga Algorithm for estimating the depth of water in shallower areas, probably depths under 8-10 meters of lakes. First of all, how accurate is this algorithm in practice? Secondly, lets say i have the band values. can someone explain me how to retrieve those depths? I am following the "Lyzenga Algorithm for Shallow Water Mapping Using Multispectral Sentinel-2 Imageries in Gili Noko Waters" paper, but there are 3 steps of getting NDWIs, NDCIs and after filtering the Sun Glint Correction, then it finally comes to the depth calculating. it end ups in a formula of following: 𝑧 = 28.32 ∗ 𝑋1 − 36.25 ∗ 𝑋2 + 9.42 ∗ 𝑋3 + 16.35 x1 , x2, x3 are RGB values respectively. What do you guys think? can i just apply this formula ? if not, what is the purpose of all the previous steps, and will they change the rgb values anyways?
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