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visits member for 3 years, 3 months
seen Oct 6 at 10:02

Jan
23
awarded  Tumbleweed
Jan
16
comment Simple pixel analysis
Please explain a bit and have a look here: spatialgalaxy.net/2012/01/25/using-the-qgis-raster-calculator
Jan
16
asked Display DEM in WPF application
Jan
14
awarded  Popular Question
Dec
13
comment Render huge amount of points on a map
my data is shp file. bt can I make a transparent wms layer?
Nov
26
comment QGIS how to compute a trendline of two point lines?
explain please. what you mean by trendline? a line joing end points? best fit line? line that rejects small changes and keep major "trend" in your poly line?
Nov
19
comment Grass installation - MSVCR71.dll error while .Net installed
addictivetips.com/windows-tips/…
Nov
18
comment Render huge amount of points on a map
it looks promising, i will have a look. thanks
Nov
18
comment Render huge amount of points on a map
i will query by clicking the poits. But I like the idea.
Nov
16
asked Render huge amount of points on a map
Jul
24
comment Iteration based positioning on Matlab - retrieving coordinates between iterations
coordinates should not be a problem. Once you have distances, you have your network. you solved? If not, put some details about how you are implementing. I will have a look in the evening again. Hopefully I can help.
Jul
22
comment Iteration based positioning on Matlab - retrieving coordinates between iterations
you can make a temp variable to store yk? also, your min cost flow looks a simple curve fitting prob. Say y = Ax; where A is redundancy matrix, y is set of observations; then in matlab you can do x=y\A; (which is a least square estimation). Please explain if i get it right.
Jul
20
awarded  Yearling
Jul
16
comment How do I import AutoCAD [DWG] drawings to QGIS [SHP] using the right CRS settings?
So i can make another observation which is a general issue with CAD to SHP. CAD supports different geometries but SHP doesnt. For example, a line is a feature in a CAD file, but not in SHP file, we need closed polygons or points. There is a good chance the export of CAD into SHP didnt do a good job. You have to look at objects. I recommend that you select one polygon only in CAD file and export that one, and see if that is working. (Thinking out loud.)
Jul
16
comment How do I import AutoCAD [DWG] drawings to QGIS [SHP] using the right CRS settings?
did you enable on the fly projection? Small detail but easily overlooked.
Jul
12
comment Divide polygon evenly based on lines and intersection points
Throw light on "I would like to split the polygon so that each line segment (green) split the polygon evenly with the surrounding line segments."
Jul
12
comment export openlayers as .shp file in Qgis
screen copy will geocoded?
Jul
4
comment pgRouting Win 7 installation problem
installation issue with pgsql, most likely. did you copy dlls at right location?
Jul
4
comment Scrollbars not visible in InfoWindow
found solution? i am curious
Jul
3
comment How do I find the average distance within a polygon to a point?
well, points inside a polygon is continuous distribution, do you have fixed number of points inside polygon? for the comment above, you mean cross boundary? in the case are you looking for a convex hull before you do math? curious!!