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Apr
3
comment QGIS DEM (Terrain models) Mode Slope creates wrong data
I am not familiar with USGS-data and capabilities of slope calculation with QGIS. But I would check if xy-units are equal to z-units. If xy-units (e.g degree) are not equal to z-units (meter, feet) the calculation of slope will be wrong.
Apr
2
comment Toblers's Hiking Equation and Slope Dilemma
Possible duplicate of How do I find least cost path over a DEM based on slope magnitude and direction??
Apr
2
comment Dissolve large dataset in ArcGIS and QGIS
Possibly duplicate Why is the Dissolve Tool not working? ?
Mar
28
comment How to create graph out of two layers using ArcGIS 10.1 for Desktop?
Can you add a screenshot of the attribute table of crime rate data set?
Mar
28
comment How to create graph out of two layers using ArcGIS 10.1 for Desktop?
Can you give more information about crime rate data set (raster/vector, point/polygon, fields, ...)? Do you have ArcGIS Spatial Analyst?
Mar
28
comment How to make polygon volume in TIN surface?
Sorry, I've swapped the tools. Correct is this: Calculate in special area of interrest: Polygon Volume (3D Analyst). Calculate for whole TIN: Surface Volume (3D Analyst).
Mar
28
comment How to make polygon volume in TIN surface?
Do you really want to calculate the volume in a special area of interest (e.g. your TIN covers Europe but you want to calculate only in area of Norway)? Then use Surface Volume (3D Analyst). Or do you want to calculate the volume for the whole area (e.g. your TIN covers Europe and you want to calculate the volume in Europe)? Then use Polygon Volume (3D Analyst).
Mar
27
comment How can I make a reference plane to measure surface volume?
This is a new question. So I suggest that you start with a new question at /gis.stackexchange.com. Then you should give details about the software you have (3D Analyst, Spatial Analyst, …), about the data you have (TIN, Raster, …) and what you want to achieve exactly. Describe the target you want to achieve.
Mar
27
comment How to create graph out of two layers using ArcGIS 10.1 for Desktop?
Can you give more information about your data? raster/vector, point/polygon, fields, screenshot of map, ...
Feb
20
comment Interactive Exports from GIS
HTML ImageMapper does not work with Mapinfo. There are probably many similar tools like HTML ImageMapper. An other aproach is to Export SVG instead of HTML. Mappetizer (ArcGIS) and SVGMapMaker (Mapinfo) export to SVG (I have both not yet used.) I assume that there is no tool with works with ArcGIS and Mapinfo.
Feb
19
comment Spatial join - many to one
Have your tried a Spatial Join in ArcGIS with these settings target_features = layer1, join_features = layerABC, join_operation = JOIN_ONE_TO_MANY ?
Feb
18
comment How to best create linked pdf to point data in ArcGIS server 10 sde 9.3?
Are you aware of Hyperlinks?
Feb
17
comment classify a table via field calculator
@Christian. You have to calculate the field before you do the join. After the join it is read-only.
Feb
17
comment classify a table via field calculator
@Christian: It depends on file format of the table. e.g. text and Excel files are read-only. You can edit e.g. dbf and Geodatabase tables. Here is a list of table formats‌​.
Feb
17
comment ArcMap's Join and symbology
How is excel file structured? Do you have one line for each Migrant_ (person) in excel?
Feb
17
comment classify a table via field calculator
+1. @Christian: check in which table (dataset of states or table with informations) you want to calculate the values​​. Joined table table with informations could be read only.
Feb
17
comment classify a table via field calculator
Reclass by Table Tool is for raster data. Do your have raster or vector data?
Feb
14
comment How to Reproject a DWG file?
@gloserio: In which software you want to use the DGW after the DWG is converted? If you want to use it in ArcGIS you do not need to reproject it to a new DWG. ArcGIS is can reproject a DWG on-the-fly.
Feb
14
comment How to Reproject a DWG file?
AutoCAD Map 3D is a desktop GIS while AutoCAD is a CAD. AutoCAD Map 3D is bases on AutoCAD but it is a seperate product/license.
Jan
31
comment Problems with transformations in ArcMap
How large is the difference between original and back transformed file?