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.

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Masking netCDF data with 2D coordinates using a shapefile

I'm trying to mask netCDF data (with 2D longitude and latitude coordinates) with a shapefile. I have one method, which I can't really finish off and I don't know if I'm doing it right. import fiona ...
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If I run a 2D simulation, the results do not show the real results

When I run a 2D simulation, the results do not show the real results. Its behaviour is like that of a "wave", as you can see in the following image: These "waves" move around the ...
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Converting 2D shapefile to 3D shapefile using XYZ elevation data (or other format if easier)

I am creating some visualizations in ParaView and I have several 2D shapefiles (rivers, lakes, streets, project boundaries etc) but they are all 2D, so are plotted at elevation = 0. I'm hoping to ...
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Identifying image location

I found an image in one of my drives that's a screenshot of find my iphone. I have a small feeling its of some importance but I won't know unless i know the location. From the image, the general ...
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How to add architectural plan to arcgis javascript 2D map

I would like to know if there is a way to add an architectural plan to my 2D map with a fixed position. Somewhat similar to BuildingSceneLayer , but for a 2d map. Note that I am working on an Angular ...
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2D move transform with pyproj [closed]

Let's say I want to move my 2D coordinate system by A and B meters in pyproj. How would I do it?
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4 votes
2 answers
686 views

How to exaggerate the elevation in QGIS 3.6?

I´m using QGIS 3.6 to create a Thematic Map with a basemap (STRM). So, to do that, I downloaded the STRM file (*.TIF) in this site: https://earthexplorer.usgs.gov/ File Name: s11_e040_1arc_v3 ...
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1 answer
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ST_Force2D in SQL Server alternative? 3D loading problems from QGIS to PostGIS

I am having problems loading a 3D layer from MS SQL Server to PostgreSQL PostGIS database with QGIS. The PostGIS data loader in DB Manager and other import tools in QGIS have problems with 3D export ...
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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. ...
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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 ...
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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', ...
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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 ...
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7 votes
3 answers
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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 ...
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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 ...
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1 vote
2 answers
809 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 ...
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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 ...
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1 answer
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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. ...
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1 answer
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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 ...
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2 votes
0 answers
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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 ...
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5 votes
1 answer
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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 ...
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2 votes
0 answers
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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 ...
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2 votes
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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 ...
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5 votes
3 answers
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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?
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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 ...
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3 votes
0 answers
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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....
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4 votes
2 answers
3k views

Giving 2d contours Z-height from attribute table in QGIS

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 ...
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3 votes
2 answers
2k 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 ...
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4 votes
0 answers
413 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('<?...
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