Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange
The results are in! See what nearly 90,000 developers picked as their most loved, dreaded, and desired coding languages and more in the 2019 Developer Survey.

Questions tagged [2d]

For spatial data that has two dimensions; which would normally be horizontal positional axes, such as Eastings and Northings, or Longitude and Latitude.

0
votes
1answer
296 views

how to map/drape polygon layers over raster in QGIS?

I want to "map" or "drape" a 2D vector (polygon) over a raster. Obtaining a 3D vector with z-values according to the raster it's draped over. Most of my internet findings point towards v.drape. ...
0
votes
0answers
22 views

Is there such a thing as no projection? [duplicate]

I was reading an article that said when we display a map in WGS84 many people call it no projection. But most definitely when you see the map it has been distorted on a 2D surface. Which got me to ...
1
vote
1answer
4k views

How to convert 1d numpy array to 2d numpy array

I used FeatureClassToNumPyArray like this: arcpy.MakeFeatureLayer_management(datapath, "lyr_fixpoints", "area_in_m2 > 8000") arr = arcpy.da.FeatureClassToNumPyArray("lyr_fixpoints", ('land_type', ...
2
votes
1answer
278 views

Adding Z value from a Point field to a LineString using pyqgis

I Have two layer in Shapefile format: a line layer made from a set of point which is a polyline 3D with z value to 0. a point layer which contains elevation in a field (field_4) Each point is ...
5
votes
3answers
8k views

Converting projected coordinates to lat/lon using pyproj fails

I have been trying to work on this issue on myself mainly referring to this post (Converting projected coordinates to lat/lon using Python?) but still didn't succeed. I have some 2-D data function ...
1
vote
0answers
319 views

How to make a .pgw file for a .png depicting a 2D profile

My question is more of an inquiry about whether I am trying to do is possible. I would like to reference an image depicting a 2D Georadar profile. I know that world files are usually used for ...
1
vote
2answers
353 views

Read 2D matrix csv file into QGIS

I have a big spatial dataset file that I need to import to the QGIS to get the temperature data from each grid. However, the dataset file is in the format of having longitude as first row, latitude as ...
1
vote
1answer
263 views

Geographic coordinate systems on 2D screens

I know that a geographic coordinate systems are inherently three dimensional, while they are usually represented by two coordinates (lat and long) because the height is about the same across the ...
0
votes
1answer
399 views

Working with 2D building footprints and ArcGIS Pro / CityEngine

I've been trying for a few days now to create 3D buildings from my 2D building footprints. All the tutorials I've been through let me down right where it counts so I've decided to ask the pro's here. ...
0
votes
1answer
568 views

Getting the max value from where polygons intersect in MapInfo

I am trying to do an intersect query on two polygon layers in MapInfo. One is a buildings layer and the other are 2d mesh triangles. I want to get the max depth from any of the triangles that ...
1
vote
0answers
494 views

How to create 3D globe images highlighting a specific country or 2D country map with capital?

I am building an Anki flashcard set that should contain country flags, names and (ideally) a 3D globe with the country outlined, as can be seen on Wikipedia. I've already completed the part that ...
5
votes
1answer
4k views

How to compute average slope and area-weighted average slope?

I am learning GIS for use in hydrologic analysis. Related to computation of overland flow there are two types of slope that I would like to be able to obtain from GIS. The first is average slope for ...
1
vote
0answers
135 views

Transforming Data using 2D Costum Transformation in Arcmap 10.2 for Desktop

I have ArcMap layers of roads, buildings etc. in one reference system (Israel_TM). I need to transfrom all this data (while keeping the topology) to pixel-space "reference system". I have already ...
1
vote
0answers
109 views

texture fill doesn't display in ArcScene

My texture fill doesn't display properly in ArcScene but it does in ArcMap. What am I doing wrong? Help! ArcMap: ArcScene: The same texture fill has been selected in both ArcMap and ArcScene. Why ...
5
votes
3answers
2k views

Tree symbol style set?

I am looking for a set of 2d tree symbols style for a landscape plan. I got an old one trees.avi that I can't import to 10.0. Can anybody link me to one?
1
vote
0answers
72 views

when make a cross-platform c++ GIS core, how to make the 2d-drawing platform independent? [closed]

i try to develop a c++ no-GUI GIS core(i want the core have no GUI related things, do not use any GUI library) and I can figure out how to do other things except the drawing part. when cope with 2D ...
3
votes
0answers
42 views

How do I map points on a 2D map to a 3D illustration of the same area? [duplicate]

I'm looking for advice on how to build an algorithm that maps any point on a map to a point on another map, interpolating where needed. Let me better clarify with an example of what I concretely need....
4
votes
2answers
3k views

Is it possible to give 2d contours a Z-height from their attribute table in QGIS? (Or ArcGIS?)

I have a contour data file downloaded from UK Ordnance Survey, which gives 2d contours of an area in gml format (also supplied in .shp format) with the heights of each contour attached to the ...
3
votes
2answers
1k views

Is there a world projection that looks like a 3D globe?

I would like to try and show data such that it appears as if it was on google earth. For example, in this case, the view of the earth is circular-like and the data shown curves around. Are there any ...
4
votes
0answers
367 views

PostGIS 2.0 st_geomfromgml using LineString fails with invalid GML representation [closed]

I am attempting to insert a geometry into a table using the st_geomfromgml function. The GML is being sourced from a Geoserver WFS request. The function call looks like this st_geomfromgml('<?...