Questions tagged [intersect]

Use for questions about the ArcGIS Intersect tool

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6
votes
2answers
3k views

Calculating proportional area of polygon within another layer's polygon using QGIS?

I have two polygon layers, model and ntem, whose features overlap and intersect one another. I would like to calculate the proportion of the area of the model polygons which fit within each ntem ...
2
votes
2answers
139 views

Merging attributes from point with containing polygon?

I need to develop a process for merging the attributes of each point in a SDE feature class with a polygon in a SDE feature class that contains the point to create a third feature class. The third ...
2
votes
1answer
186 views

Combining several layers in ArcGIS Desktop using Intersect gives WARNING 000117: Warning empty output generated?

I'm using ArcGIS 10.3 I have the following 4 layers (all are polygons) You can find these layers in this link DATA Sites: 5 subcatchments (Site1 to site5) and site 5 combine all subcatchments ...
7
votes
1answer
4k views

Generate rectangular fishnet or vector (grid cells) shapefile in R?

I would like to create a polygon of 20 x 10 degree graticules from 180, -180 to 90, -90 degrees. To do this in QGIS, I followed: Vector creation tools > Create grid [Grid extent: -180, 180, -90, 90]...
4
votes
3answers
419 views

Intersect multiple layers at once QGIS

I'm very new to QGIS and am just learning the intersect function. I have about 10 polygons that overlap (not perfectly) and one layer of about say 15 points. I want to know with which of the polygons ...
1
vote
1answer
140 views

Batch updating point attributes based on values of underlying polygon using ArcGIS Desktop?

I have a points shapefile with a blank field. I want to populate this field with an attribute obtained from another underlying (polygon) shapefile. I can do this for a single record easily using ...
1
vote
1answer
171 views

Regrouping concat labels with overlapping intersecting geometries in QGIS

All the fields i want to show on the map are in the same layer. All the labels have to be showed on the map. But the concentration is high. So i would like to concat the labels when geometries are ...
2
votes
1answer
2k views

Raster intersect and gIntersection give different results in R

I'm trying to clip a polygon shapefile (species distribution) with another polygon grid. The goal is to calculate the area occupied by the species within each grid cell. I was able to do it with ...
1
vote
2answers
3k views

turf.js intersect problem?

I have two geojson data sets. One of them is polygon feature "yolbuf" and the other one is a polygon feature collection "polygon". I want to calculate intersections of every feature in polygon feature ...
1
vote
2answers
455 views

Intersecting three polygon layers in ArcGIS?

I have three data sets of San Francisco, TerraSAR-X, ALOS-PALSAR, Radarsat2. I have extracted KML files using Envi Sarscape. In order to find the intersection of these areas, I have converted ...
0
votes
1answer
941 views

R: Self-intersection error when using intersect with two shapefiles

I am trying to "translate" worldwide raster data to European nuts3 polygons. That means I try to overlap two shapefiles to find the average value on nuts3 level. Unfortunately, when I use the ...
0
votes
1answer
653 views

Computing geometric intersection (line-on-polygon overlay) using ArcPy?

I want to take geometric intersection of line and polygon shapefile. ArcPy has a tool: arcpy.Identity_analysis but it is available with "ArcGIS for Desktop Advanced" and I have "ArcGIS for Desktop ...