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network profile
| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 1 year, 8 months |
| seen | yesterday | |
| stats | profile views | 23 |
Currently a GIS developer in the field of sustainability science.
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May 8 |
accepted | Sum raster data visible from given point, by proportion of view |
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May 2 |
comment |
Counting road intersections and blocks Great :) I should point out that what you call "blocks", sdna calls "links". Hope it helps. |
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Apr 30 |
asked | GEOS: split line at point |
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Apr 30 |
answered | Counting road intersections and blocks |
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Apr 30 |
asked | GEOS: How to intersect without noding? |
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Mar 21 |
comment |
Sum raster data visible from given point, by proportion of view Thanks for the extended answer. Beautiful 3rd picture btw. Sounds like more work than I'd been thinking though! |
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Mar 6 |
comment |
Sum raster data visible from given point, by proportion of view (And assume that either I have elevation data for buildings, or I don't care about them!) |
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Mar 6 |
comment |
Sum raster data visible from given point, by proportion of view You are both right; I am thinking of solid angles, obviously excluding the sky and as you say the cell beneath (hadn't thought of that). But then normalizing to proportions anyway. To give a result like "from point x, we can see 70% buildings and 30% fields". |
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Mar 6 |
revised |
How to use GEOS/C++ to efficiently find all point pairs closer than a threshold? added 3 characters in body |
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Mar 6 |
asked | Sum raster data visible from given point, by proportion of view |
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Feb 4 |
comment |
GEOS: how to access Noder functionality through the C API I have found out that if you union or intersect a line geometry with itself, it comes back noded. But without any control over the noding algorithm. |
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Jan 14 |
comment |
Reading shapefile tolerance in python As an aside why would anyone store coordinates in doubles? Doesn't that mean precision varies depending on position? |
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Jan 14 |
accepted | Reading shapefile tolerance in python |
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Jan 11 |
asked | Reading shapefile tolerance in python |
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Nov 22 |
asked | Spatial join to kernel density / kernel density with polygon/point output in Arc |
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Oct 17 |
comment |
What are arc's guarantees on data precision, XYTolerance (i) when displaying (ii) in arcpy? Sounds plausible, but see my update - I managed to create features smaller than XYTolerance and they weren't displayed as identical |
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Oct 17 |
revised |
What are arc's guarantees on data precision, XYTolerance (i) when displaying (ii) in arcpy? added 974 characters in body |
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Oct 17 |
comment |
Reading environment variables in arcpy Ok... but how to retrieve XYTolerance from the script dialog box? Which workspace does that live in? |
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Oct 12 |
awarded | Quorum |
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Oct 12 |
accepted | How to use GEOS/C++ to efficiently find all point pairs closer than a threshold? |
