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zoran-cuckovic / QGIS-visibility-analysis

Quantum GIS plugin for visibility analysis
GNU General Public License v3.0
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Problem with MultiPoint layers #9

Closed PedroVenancio closed 3 years ago

PedroVenancio commented 7 years ago

Hi,

It seems that Viewshed Analysis does not work well with multipoint layers.

In both cases, it runs, but the result for multipoint layers is always centred in the coordinates [0,0] of the reference system.

You can get two sample shapefiles (one point and another multipoint) from here: https://cld.pt/dl/download/663aaf77-d786-43f2-967d-515c2a9fe676/sample_point_multipoint.zip

They are in EPSG:3763 CRS.

You can also get a sample DEM in EPSG:3763, from here: https://cld.pt/dl/download/baf86f62-c8ab-4e56-b557-ba4dce8a9b7d/dem_srtm_pttm06_80m.tif.bz2

Tested in both windows and linux, with Viewshed Analysis 0.5.4 and some prior versions.

Thank you very much for your work Zoran!

zoran-cuckovic commented 7 years ago

Hello,

No, it does not work with multi-points: you should convert your data to standard point layer. I will see what can be done about that...

Regards

PedroVenancio commented 7 years ago

Hi Zoran,

Thanks for the reply! Maybe you can add that info in the Reference tab of the plugin, in 'Data - Observer points' and in http://zoran-cuckovic.from.hr/QGIS-visibility-analysis/#1.

Thank you very much! Best regards, Pedro