Recent questions tagged gis

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861 views

1 answer

gis - Export shape file (.shp) file of a given city using google maps or google earth?

I want to capture aerial view of a city with the help of google maps/google earth for which I need .shp (Shape File ... -shp-file-of-a-given-city-using-google-maps-or-google-earth...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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917 views

1 answer

gis - Best way to convert called OSM data from SF to Shapefile within R

Completely new to R, forgive me - I'm trying to use R to create some historic OSM data thats stored as a sf ( ... best-way-to-convert-called-osm-data-from-sf-to-shapefile-within-r...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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830 views

1 answer

gis - QGIS - converting or saving temporary scratch layer

I have used the GRASS v.to.rast and r.surf.contour functions in the processing toolbox of QGIS 3.10 ... .com/questions/65848480/qgis-converting-or-saving-temporary-scratch-layer...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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5.7k views

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gis - Animating TripsLayer in deck.gl with python

I have seen the TripsLayer example in the deck.gl website (this one) and it looks really cool. I ... .com/questions/65865145/animating-tripslayer-in-deck-gl-with-python...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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745 views

1 answer

gis - How to avoid compression when converting GeoTIFF to MBTiles?

I have been trying to convert a set of GeoTIFF files into MBTiles using gdal_translate (GDAL 3.0.4). ... /65885109/how-to-avoid-compression-when-converting-geotiff-to-mbtiles...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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775 views

1 answer

gis - Finding out why QGIS GRASS algorithm is hanging - persistent log?

I am running the GRASS r.surf.contour algorithm on some raster contour layers in QGIS. Seven of the layers ... /finding-out-why-qgis-grass-algorithm-is-hanging-persistent-log...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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613 views

1 answer

gis - Assign one of three values at random to a raster cell given constraints

I'm working on some post processing of a very large raster (437760000 cells) using other raster layers of the same ... -of-three-values-at-random-to-a-raster-cell-given-constraints...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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676 views

1 answer

gis - NoSQL and spatial data

Has any of you had any experience with using NoSQL (non-relational) databases to store spatial data? Are ... :https://stackoverflow.com/questions/2041622/nosql-and-spatial-data...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

782 views

1 answer

gis - ArcGIS Pro Layer from REST API

I am new to ArcGIS Pro/ software. We have a existing map. Is it possible the layer data of the map ... https://stackoverflow.com/questions/66066336/arcgis-pro-layer-from-rest-api...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

638 views

1 answer

gis - ArcGIS Pro Layer from REST API

I am new to ArcGIS Pro/ software. We have a existing map. Is it possible the layer data of the map ... https://stackoverflow.com/questions/66066336/arcgis-pro-layer-from-rest-api...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

595 views

1 answer

gis - How to upgrade from Medium Resolution NHD to High Resolution NHD in ArcMap 10.5

For my work, I maintain our spatial databases and update spatial layers as projects update. For example, one layer I ... medium-resolution-nhd-to-high-resolution-nhd-in-arcmap-10-5...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

790 views

1 answer

gis - Geotools write an feature collection array into the same json file using FeatureJSON class

I want to implement getfeatureinfo with geotools , i already writed the code to get a given feature info in a given bbox , ... ; outputStream.close(); } os.flush(); os.close();...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

596 views

1 answer

gis - Assign one of three values at random to a raster cell given constraints

I'm working on some post processing of a very large raster (437760000 cells) using other raster layers of the same extent ... I am working in terra for this. Any thoughts? Thanks!...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

gis - DotSpatial.Projections.Reproject.ReprojectPoints with Height?

https://github.com/DotSpatial/DotSpatial/blob/master/Source/DotSpatial.Projections/Reproject.cs Please can someone explain the Z ... down to earth again. Has anyone done this?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

gis - Dissolve Lines in Python

I have a shapefile with multiple lines. I am looking for a method to dissolve all the touching lines. This was ... to Dissolve and multipart. Not needing to use any attributes....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

988 views

1 answer

gis - Dissolve Lines in Python

I have a shapefile with multiple lines. I am looking for a method to dissolve all the touching lines. This was ... to Dissolve and multipart. Not needing to use any attributes....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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