Chau

1,126 reputation

1824

bio	website	null
	location	Allerød, Denmark
	age	33
visits	member for	2 years, 10 months
	seen	11 mins ago
stats	profile views	239

Work: I work at an consultancy company, creating geographical data like ortho photos, vector data analysis, hydrological screenings, etc.

Education: Engineering with focus on applied math, geoinformatics, industrial and medical image analysis, and computer graphics.

Spare time: Friends, playing and listening to music, volleyball, singing, dancing, yoga and exploring my adventurous soul.

	1,126 reputation	bio	website	null	visits	member for	2 years, 10 months
1824 badges		location	Allerød, Denmark		seen	11 mins ago

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69 Comments

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50m	comment	Is GeoServer Image Pyramid upscaling? @Andrea: You write that the GUI doesn't expose the setting, but can I edit some configuration file or similar to select a different policy?
Mar 13	comment	QGis and developpement version I agree with you as far as it would be nice to have access to a compiled version of the latest (daily/weekly) development snapshot of QGis. I see the same references to 1.9x and I'm looking forward to all the stuff its capable of :)
Feb 12	comment	How to get WMS layer title instead of the layer name in QGIS? If you suggest that I modify existing QGIS functionality, I might pass this one :)
Feb 12	comment	How to get WMS layer title instead of the layer name in QGIS? My bad, I found an existing feature request (hub.qgis.org/issues/4002) which keeps being pushed to the next version. It seems like a simple change, but I might be wrong then :)
Feb 6	comment	Find gap in / endpoints of linestring I found that the Sextante toolbox in OpenJump has the Extract endports of lines method. It does the trick, but OpenJump runs out of memory all the time, which is very annoying. I remember something about QGIS having the Sextante toolbox, but I could not find it.
Jan 4	comment	a is undefined : openlayers I would go debugging into the line in your javascript that causes the error - try firebug or similar. I don't think its the cause of the error, but mind the invalid `comma` after `extractAttributes: true`.
Jan 4	comment	Is it possible to use symbols instead of colours to visualise raster cell values? I fine solution. But I really prefer one where I don't have to alter my raster, in your example, to polygonise it.
Jan 4	comment	Is it possible to use symbols instead of colours to visualise raster cell values? In this case my raster is a one band image with 10 different integer values - a simple case. But it could be neat to be able to style raster images on the fly in general.
Jan 3	comment	Is it possible to use symbols instead of colours to visualise raster cell values? Can you give me a hint to where I can learn about this?
Jan 3	comment	Is it possible to use symbols instead of colours to visualise raster cell values? Can you give me a hint to where I can learn about this?
Jan 3	comment	Is it possible to use symbols instead of colours to visualise raster cell values? Because its a visualisation just like colormaps.
Dec 7	comment	How to detect a GDAL/OGR 'Warning'? @nickves: I have asked the question here because I expect the folks using GDAL/OGR to be using this forum.
Dec 7	comment	How to detect a GDAL/OGR 'Warning'? @BradHards: I would rather not dive into the C code and compile the stuff my self.
Nov 7	comment	GDAL.RasterizeLayer not ported to the C# bindings? Can you give me an example of how to initialize and what to provide one of the SWIGTYPE parameters with?
Nov 2	comment	GDAL.RasterizeLayer not ported to the C# bindings? I have no idea about how to use the `SWIGTYPE` parameters, what to initialise them with and so on.
Oct 2	comment	ImagePyramid tuning in Geoserver Ahh... I see what you mean, and I see my own mistake. The pyramids are actually following the powers of 2, but I have confused my self (and everybody else) by writing resolution as a description instead of size. I guess I was thinking in sizes while using the more precise term resolution. Never the less, I get your point now :)
Oct 1	comment	ImagePyramid tuning in Geoserver I guess you're saying, that its more efficient to use inner tiling and search for the required tiles inside a TIFF file than searching for the required tiles as individual TIFF files. I can follow that one. But does it make sense to use overviews if I'm creating a pyramid? If I follow the first part of this comment, having more than one TIFF file, a pyramid is more efficient due to the number of TIFF files GeoServer needs to access?
Sep 4	comment	What are the benefits of RGBI Geotiffs vs ECW format? GeoTIFF can be compressed. One of the disadvantages and important things to remember when working with ECW is the license required by ERDAS/Intergraph. Both GeoTIFF and ECW can contain multiple bands and thus they both can include the near infrared (NIR) colour channel.
Aug 5	comment	Trilateration in 3D with signal strengths You could try to post the same question in math.stackexchange.com.
Jul 2	comment	QGIS: WMS misalignment At the moment I guess it is GeoServer related. I have posted a question in the GeoServer mailing list, but I haven't recieved any responses though... I get the same problem when manually sending requests directly to GeoServer.