10
votes
Extracting Values to Points without ArcGIS Spatial Analyst?
Script:
import arcpy, traceback, sys, os
pntFile=arcpy.GetParameterAsText(0)
rasters=arcpy.GetParameterAsText(1)
rasters=rasters.split(';')
theFields=[x.name.lower() for x in arcpy.ListFields(...
- 22.4k
9
votes
Accepted
Finding pixels in DEM with 5% slope or less?
You mention 3D Analyst so I am assuming you have ArcGIS.
Use the tool ArcToolbox-3D Analyst Tools-Raster Surface-Slope to create a slope surface from your LiDAR data.
Use the tool ArcToolbox-3D ...
- 8,837
7
votes
Creating Buffer Polygon following Elevations using ArcGIS Desktop?
Workaround for what you describe in absence of spatial analyst:
arcpy.Buffer_analysis("target","../buffer.shp", "100 Meters")
arcpy.FeatureVerticesToPoints_management("buffer","../points.shp","ALL")
...
- 22.4k
6
votes
Importing 3D Analyst functions with ArcPy?
Sorry for bumping this old question, but a Python module's name cannot begin with a number, so arcpy.3d will never work. To import the module, you'll need to reference ddd:
from arcpy.ddd import *
...
- 116
6
votes
Accepted
Extracting Values to Points without ArcGIS Spatial Analyst?
3D analyst's Add Surface Information will add a Z field to your vector data with the data value from the overlapping raster layer:
Interpolates surface elevation properties for point, multipoint, ...
- 158
6
votes
How to export a jpg from ArcScene?
There is no Layout View in ArcScene.
You can export your scene to JPG by using File > Export Scene > 2D... and selecting JPEG in the Save As Type drop-down of the Export Map dialog.
- 29.5k
5
votes
Accepted
Labelling an axis in ArcScene?
Turn on the 3D Graphics toolbar, adjust some of the default text graphics properties before you add a label so that it is added large enough to see/find.
Select the 3D Text tool
Use the 3D Text tool ...
- 29.5k
5
votes
Viewshed Analysis incorporating tree height
Your workflow will be something like this (you don't mention what software you're using but this should work with anything). Basically you just need to add your pine trees to the DEM as if they were ...
- 12.1k
5
votes
Accepted
Slope calculations appear to be 90 degrees off in ArcGIS 3D Analyst?
I think your error is a result of performing a slope calculation on a DEM that isn't in a projected Coordinate Reference System (CRS). The reason for performing a transformation/warping of your DEM is ...
- 1,388
5
votes
Accepted
What is the arcpy.ddd module?
When you type arcpy.ddd into the python console in ArcMap or ArcCatalog it notes arcpy.ddd is:
arcpy.ddd The 3D Analyst toolbox provides a collection of
geoprocessing tools that enable a wide ...
- 34.9k
5
votes
Finding pixels in DEM with 5% slope or less?
You can take the DEM and run the "Slope" tool in 3D Analyst. It is under the "Surface" Toolset. Choose "percentage" as the output type.
Once you have the "Slope" raster you can run the Reclass tool ...
- 3,637
4
votes
Accepted
Difference between "hard edge" and "soft edge" in Arc's Add TIN Line?
Per the help file:
Hard and soft qualifiers for line and polygon feature types are used
to indicate whether a distinct break in slope occurs on the surface at
their location. A hard line is a ...
- 15.6k
4
votes
Choosing video card in laptop to use with ArcScene
GIS wont be a big drain on your graphics card. You might not want to hear this, but even an Intel integrated graphics chip will do fine.
I definitely wouldn't go for a workstation graphics card, they ...
- 13.3k
4
votes
Accepted
Finding average elevations from a Raster DEM, applying those to Vector Grid created with GME
If you have access to Spatial Analyst, you could use the Zonal Statistics tool.
You could treat each cell in the angled vector grid as a zone, and use Zontal Statistics to calculate the MEAN ...
- 20.9k
4
votes
Extracting Values to Points without ArcGIS Spatial Analyst?
You can do this with Hawthorne Beyer's free Geospatial Modelling Environment, (GME, formerly known as Hawth's Tools). There is a tool in there, Intersect Points With Raster, which as its name implies, ...
- 12.1k
4
votes
Accepted
CHaMP Topo Processing Menu not active in ArcMap 10.1
The toolbar is designed to work with a "SurveyGeodatabase", which is created in the first step of the Toolbar workflow. Unless you are working with a set of total station data, I think the toolbar is ...
- 96
4
votes
Accepted
Calculating difference between two rasters using ArcGIS for Desktop?
Yes you can use Spatial Analyst for this.
I'm not a Spatial Analyst expert, but I would look at the Raster Math tools to accomplish this - starting with the Minus tool.
- 29.5k
4
votes
Making 3d block from flat 2d polygon in ArcScene?
The workflow to get this:
Elevation of original buffer = 100m.
I defined plateau elevation = 150 m, and computed D=50/tan(35).
D=71.40 m.
Next - create negative buffer "outside only" with minus 71.40 ...
- 22.4k
4
votes
Digital elevation model versus hillshade for creation of cross-section In ArcMap
If I understand you correctly, the DEM contains the values (elevation) that you want to use to create your cross sectional visualizations to show faults or fractures in the terrain. You may want to ...
- 2,759
3
votes
Calculating Slope of Street Segments using ArcGIS Desktop?
I usually approach this problem with a different workflow:
Focal statistics on DEM with MEAN and small window like 3x3 cells (to get rid of potential artefacts in elevation data and account for the ...
- 73
3
votes
Choosing the right parameters to interpolate a DEM from contours
For any surface analysis involving hydrology, TopoToRaster is preferred over TIN as it has Drainage Enforcement.
As @Martin noted, 5m contour interval is unlikely to be dense enough to create or ...
- 28k
3
votes
Calculation of surface of external walls of buildings from a cadastral footprint shapefile
INPUTS:
PROCESS:
Join summary table to S_JOIN using line id
Select not shared walls using
"SUM_ST.FIRST_BLDI" = "SUM_ST.LAST_BLDID"
Remove join and export selection to new dataset called ...
- 22.4k
3
votes
What is result from cut fill operation?
The negative volume is the amount of dirt you have used to fill the hole in projection units and your chosen z unit. In your case it is the amount of fill needed to fill the lake. So if x y z are ...
3
votes
Accepted
Tin created from raster have different profile graphs?
I have not used Raster to TIN, but judging by the documentation (which has an image to demonstrate), the triangulation is not performed using all of the nodes in the raster. It uses only enough that ...
- 3,071
3
votes
Visualizing elevation profile across a whole mosaic dataset?
As a workaround solution, you can interpolate a line from your mosaic dataset using the 'interpolate line' tool. You can then use the output line to create the profile.
According to this post: https:/...
- 6,910
3
votes
Unlocking 3D Analyst and Spatial Analyst Tools with ArcGIS Pro?
If you already have ArcGIS Desktop (ArcMap) with those extensions, ArcGIS Pro is licensed to use the same extensions - you won't need to buy the extensions again.
You will need to set up your ...
- 29.5k
3
votes
Accepted
Displaying multiple stacked layers in ArcMap
The Layout View of ArcMap only displays a planimetric view.
For the view that you seek you could investigate the ArcScene application of ArcGIS 3D Analyst.
- 64.7k
3
votes
Accepted
Assigning elevation to reclassified raster in ArcScene or ArcMap
Go to the Layer Properties of your Geomorphogical_FPA layer, Base Heights tab. Click the radio button 'Floating on custom surface'. Choose your DEM as the surface to drape the classified image on top ...
- 1,649
3
votes
Accepted
Create points based on location of known points in a layer
If you look in the ESRI code sharing website, you can bet someone has done something similar and uploaded free to the community, you just need to search for it.
For example I've created a tool ...
- 41.8k
3
votes
Accepted
All cells in raster have the NODATA value
I believe the error is due to your point being on a NODATA cell. How can you do a viewshed if you do not know your height? View sheds are traditionally run on surface DEMs, where every cell has an ...
- 41.8k
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