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visits member for 9 months
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Feb
4
reviewed Needs Improvement Extract Values to Point from Raster Issue
Feb
4
reviewed Needs Improvement Finding all neighbors for all polygons in Spatialite
Feb
4
reviewed Satisfactory Difference between Identify task & Attribute Info in ArcGIS Java Script API (ver. 2.x & 3.x)
Jan
25
comment File Geodatabase XY Resolution and XY Tolerance
@ piotrek: does the answer solves your question? Then you can mark the answer as "accepted" - see here. Or do you still need help?
Jan
25
comment How to georereference a TIFF file which has already a spatial reference?
@gideon: you want to adjust the tif to the vector data. You can also use this alternative: Adjust the vector data to the tiff. Use the Spatial Adjustment toolbar for this.
Jan
25
comment How to georereference a TIFF file which has already a spatial reference?
If it is a geotiff: open the tif in an image viewer software (e.g. irvan view). Save it to a new file (tif). The new tif will be a "normal" tif - not a geotiff.
Jan
22
answered How do I sort polygons by their latitude?
Jan
22
answered File Geodatabase XY Resolution and XY Tolerance
Jan
16
answered Interpolation of Values in ArcGIS
Jan
16
comment Interpolation of Values in ArcGIS
do you have barriers? e.g a mountain. on each side of the mountain there may be different climate conditions so that you may want do use barriers.
Jan
16
comment Interpolation of Values in ArcGIS
do you have ONE value for each station? or do you have many values (e.g. one for each year) for each station?
Jan
16
comment Interpolation of Values in ArcGIS
Can you describe in more detail what your input data is? What software (Spatial Analyst, Geostatistical Anlayst) do you have?
Jan
15
revised Several questions about using spatial data?
add information to *geometry* and *geography* types
Jan
15
comment Several questions about using spatial data?
I do not understand what you mean with the difference geometry <--> geography.
Jan
15
answered Several questions about using spatial data?
Jan
10
answered Querying Data with a 1-Many Relationship Class
Jan
8
answered digitizing (tolerence) error in line data
Jan
3
comment How to consecutively number polygons from north to south following a polyline?
@Gandalf. Do I understand your last comment correctly? You are trying to reorder the vertices of the POLYGONS? You do not have to use the vertices of the POLYGONS (= "polygons in question"). You have to convert the vertices of the LINE (= "western border") to points.
Dec
21
comment How to consecutively number polygons from north to south following a polyline?
If I convert line vertices to points the order of the points is not randomly. I do not understand why your order is randomly. Perhaps you can try to reorder the vertices with one of these aproaches: Export/Import shapefile, add vertices with densify, use ogr2ogr to convert the shape file to a new shapefile
Dec
21
comment How to consecutively number polygons from north to south following a polyline?
Gandalf, with the sequence you described (A1 C2 B3 and I7 H8 G9) I would try the described approach to convert the polygons to centroids. In most cases this will provide the desired result. But there will be some problems too: With strongly curved polygon or with strongly curved border-line, the sequence may be shifted slightly. Polygons like D,E,F will get the same IDs. If the border-line not has enough vertices some polygons will get the same ID (try to add vertices with the “densify”-function).