| bio | website | ailin.phychembio.com |
|---|---|---|
| location | Hong Kong | |
| age | ||
| visits | member for | 1 year, 5 months |
| seen | 10 hours ago | |
| stats | profile views | 6 |
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Feb 28 |
comment |
Way to add 1km x 1km UTM grid onto online map service yes, I will use my own web server. Maybe it is possible to use geospatial database for this purpose. |
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Feb 27 |
comment |
Way to add 1km x 1km UTM grid onto online map service Thanks for your answer. I have another idea, instead of using QGIS to generate the grid, is to convert UTM grid point into lat/lon. Then we use the points to generate a KML to plot on Google maps. Would it work? |
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Feb 26 |
revised |
Way to add 1km x 1km UTM grid onto online map service added 10 characters in body; edited title |
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Feb 26 |
asked | Way to add 1km x 1km UTM grid onto online map service |
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Feb 24 |
comment |
Conversion between WGS84 height and local height datum @BradHards , you are right! |
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Feb 23 |
comment |
Conversion between WGS84 height and local height datum Thanks for @DevdattaTengshe providing the link, unfortunately, I can't find HKPD gtx file. |
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Feb 23 |
awarded | Commentator |
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Feb 23 |
comment |
Conversion between WGS84 height and local height datum I don't mean the height above the ellipsoid. It is the local-defined height. |
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Feb 23 |
revised |
Conversion between WGS84 height and local height datum added 15 characters in body |
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Feb 23 |
asked | Conversion between WGS84 height and local height datum |
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Feb 21 |
revised |
How can a GPS receiver know the estimated error? edited body |
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Feb 21 |
revised |
How can a GPS receiver know the estimated error? added 93 characters in body; edited title |
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Feb 21 |
comment |
How can a GPS receiver know the estimated error? What I want to know is that, why can a GPS receiver know the estimated error and plot a circle of possible error on the map? From NMEA message, there is no such field, but only DOP. Are they calculating the error from these figures? |
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Feb 21 |
asked | How can a GPS receiver know the estimated error? |
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Feb 21 |
accepted | Is there any online tool for converting coordinates between different EPSG? |
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Feb 21 |
comment |
Is there any online tool for converting coordinates between different EPSG? this tool is really more handy~! How about including Z-axis conversion? |
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Feb 21 |
asked | Is there any online tool for converting coordinates between different EPSG? |
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Feb 15 |
accepted | Why are the areas covered by 2 Universal Polar Stereographic (UPS) coordinate different? |
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Feb 15 |
asked | Why are the areas covered by 2 Universal Polar Stereographic (UPS) coordinate different? |
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Feb 6 |
accepted | other than GrADS and NCL, any other map/chart scripting and plotting software dedicated for climate and meteorology? |