All Questions
37 questions
0
votes
1
answer
60
views
Closest possible zoom level in QField
Our idea is to utilize a GNSS capable handheld android tablet to measure and later on relocalize field trials with QField. For the sake of accuracy we're eyeing devices with RTK-level precision ...
- 3
2
votes
1
answer
349
views
Can't get the right zoom in QGIS layout mode
The increments in which QGIS zooms while rolling the mouse wheel are too extreme. I might be zoomed out too far, but when I roll the mouse wheel just one increment, I zoom way too far in. Normally I ...
- 89
2
votes
0
answers
112
views
Mapnik image render not corresponding to generated tiles
I successfully manage to install a tile server using Mapnik following this tutorial: https://switch2osm.org/serving-tiles/manually-building-a-tile-server-ubuntu-22-04-lts/
The tiles are fine and look ...
- 21
3
votes
0
answers
206
views
QGIS - what the equivelant rendering scale dependencies for the zoom levels when generating XYZ Tiles (Mbtiles)?
I am trying to make a map from zoom 0 until zoom 12 in QGIS. All shapefiles have CRS: EPSG 900913.
What i am trying to acheive is eg: on zoom 0 will show just the map, then zoom 2 till 8 will appear ...
- 31
2
votes
2
answers
195
views
QGIS zoom to predefined scale with mouse wheel
Do you know if it is possible to set QGIS to zoom to the predefined scales (in project options) when using the mouse wheel ?
- 103
3
votes
0
answers
516
views
GeoServer wind speed with WMS
I have a GeoTIFF layer with spatial resolution of 3 km with two bands with wind speed components (u,v). I want to display these datasets with RasterAsPointCollection plugin with arrows size and ...
- 187
1
vote
0
answers
80
views
Zoomscale method in QGIS C++ API
I am working on a custom QGIS application using QGIS C++ APIs.
I am able to render .mbtiles file of world blue marble as a raster file on Qgsmapcanvas. but when I call zoomscale API on canvas with ...
- 95
4
votes
2
answers
619
views
Making tiny objects visible for their location when zooming out
I'm adding small features to QGIS that I need to be in a precise location (trail signs) like so:
1:500
However, when I zoom out, they become invisible:
1:10000
If I switch the sizing to millimetres (...
- 497
0
votes
0
answers
3k
views
Display Features based on Zoom Level using OpenLayers
I want to display roads(linestring) on the map using OpenLayers.currently, I manage to assign styling based on road type but when I run the server I can see all the data displayed. I want to change ...
- 113
0
votes
1
answer
2k
views
Min and max zoom levels/scales for a QGIS project
We've built a qgis project for use in education and we want to set up a min. and max. zoom level (or scale) for the whole project.
In the project properties, we can specify some "project predefined ...
- 1,285
1
vote
1
answer
2k
views
How to calculate scale from zoom level in Google Earth Engine?
I found the following formula on the interwebs, including on some google group from someone claiming to work at Google:
var scale = 156543.03392 * Math.cos(mapCenter.lat * Math.PI / 180) / Math.pow(2,...
- 774
3
votes
3
answers
312
views
How to make the display of a satellite image the same across users?
I have a group of users counting objects in a satellite image. To keep viewing conditions the same I wish each user to have the same display (e.g., the same scale).
To do this, I have asked users to ...
- 31
0
votes
1
answer
698
views
Increase max zoom for large scale raster with GeoServer
I'm serving a large scale raster (warehouse map) with GeoServer.
I consume the WMS in a Leaflet web client and coordinates are projected according to EPSG:3857.
But it seems that maximum zoom is ...
1
vote
0
answers
59
views
zoomScale() doesn't work in QGIS 2.14 standalone c++ application
Can't set scale for my canvas with mapCanvas.zoomScale(50000); Seems like canvas is zooming to 1:1 and for a few seconds I can't zoom in or zoom out with mouse wheel. Any suggestions?
- 123
0
votes
0
answers
62
views
Trying to figure out ArcGIS API's `mapScale` variable and how it maps to OpenStreetMap's zoom level
I'm using ArcGIS' /export endpoint to get an .svg of a few map layers given a specific bounding box. However, when I apply the .svg as an image overlay to OpenStreetMap's world map using Leaflet, the ...
- 23
-1
votes
2
answers
102
views
How to maintain current zoom level when panning to a new feature? [duplicate]
I want to speed up my work. How could I get ArcMap to stay at my current zoom level when panning to a new feature?
What I am currently doing is using Ctrl+Enter to move through my attribute table and ...
- 7
2
votes
1
answer
1k
views
Set zoom level to display full extent of specific layer when starting a project in QGIS
I have project in QGIS 3.2 with different shapefiles and WMS layer. When I start the projectfile (.qgs) I want the extent of the map to be the same as one specific WMS layer (same as the option "zoom ...
- 393
1
vote
0
answers
88
views
ol3 zoom with defined scale
I am trying to show map based on the gridset defined in geoserver, in such a manner that map zooms to that Scale only.
Scale is as follow : 1:1000, 1:500, 1:400, 1:300
view = new ol.View({
...
- 19
1
vote
1
answer
983
views
Geoserver WMS limiting map visibility by scale
In ArcGIS I can manually limit visibility of a map layer by specifying a min and max scale (see below).
Is it possible to instead set this server-side on Geoserver? I've seen something similar in ...
- 143
1
vote
1
answer
149
views
Editing OpenLayers viewer in GeoServer?
I would like to custumize the openlayer3 viewer integrated in the Geoserver (2.13) to have more zoom levels (by default there are 28 zoom levels with a zoom factor of 2). In other words, I would like ...
- 41
0
votes
1
answer
293
views
Scaling map for certain layers using CARTO?
I would like layer setup in CARTO - scaling map for certain layers.
How do I change the zoom, for example, on map markers, so that they are not displayed at all scales?
-4
votes
1
answer
1k
views
GIS scale bar in ArcMap [closed]
I want add scale like google 500km until 5m and convert scale to mile in my map
I use scale setting and load in their for add GIS scale bar
But I don't know which standard scale and scale format ...
- 73
5
votes
1
answer
3k
views
Converting miles above ground to zoom level?
I've got a spec that details what features are to appear on a map at certain number of miles above the earth. So for example "Render this point when closer than 400 miles above the earth".
How do I ...
- 408
4
votes
2
answers
4k
views
Watching for scale/zoom changes in ArcGIS API for JavaScript 4?
I am trying to add an event listener for when the scale of the map changes, that is scale or zoom level changes in order to enable or disable feature layer label text. When the user zooms in to a ...
- 183
2
votes
2
answers
5k
views
Limit Zoom Levels in ArcGIS Online WebMap
I am adding a feature class to a WebMap that I am then incorporating into a WebApp using WebApp Builder for ArcGIS. I have set the visibility scale on my feature class as I would like it. When ...
- 6,946
5
votes
3
answers
7k
views
Zoom map to a scale in Leaflet
I am preparing a printable map in leaflet. For this purpose I would like to make a map zoom to a particular scale eg. 1:500 or 1:1000. But Leaflet zooms a map based on the extend and zoom level only. ...
- 771
2
votes
1
answer
285
views
Getting more details by zooming in web-client?
today I've setup a qgis server and web client on my windows machine.
Here is my WebClient.
Now I'd like to test out everything.
I tried to zoom in to the map, but it just stops by 1:2257 . I need ...
- 21
8
votes
1
answer
3k
views
Is it possible to set different scale dependent visibility for one layer classifications?
I'm working on a sewer and water network, so I need to set different scale visibility for primary, secondary and tertiary network.
- 130
1
vote
1
answer
2k
views
WMS scale denominators and zoom levels: why are these tables different?
I'm trying to understand how WMS scale denominators translate to tile zoom levels. (Specifically, Google Maps zoom levels.) I found this answer to What ratio scales do Google Maps zoom levels ...
- 293
0
votes
1
answer
127
views
Meaning&Computation of range property in CMAPI map.view.zoom message
We are implementing a CMAPI 1.3.0 programming interface to abstract basic Gis commands from the actual Gis library underneath (Luciad Lightspeed 2016.0).
In the map.view.zoom command, I don't ...
- 193
1
vote
1
answer
85
views
Using large-scale maps/plans in Esri Story Maps
If there´s a possibility to adjust the scale of the basemap to plan-like maps.
Thing is, that i´ve got a map/plan of a greenhouse and i want to make a "guide" through this greenhouse to show some ...
1
vote
1
answer
4k
views
Zoom Scale in OpenLayers 3
Need to change the default zoom of OpenLayers 3 to do so adapted scales, type [1: 100000, 1: 50000.1: 25000.1: 10000.1: 1000.1: 500] have seen in Openlayers2 if you can, but at 3 I have not found a ...
- 347
1
vote
2
answers
165
views
Setting up Hot Key to zoom to Map Scale?
I'm wondering if I can set up a hot key to zoom to 1:4500 whenever I use it.
Also if I can set up a hot key to zoom in to 1:1250.
I have these two extents set up in the custom extent area and when ...
- 119
2
votes
0
answers
3k
views
How to get bounds coords by center LatLng point, width and height in pixels and zoom?
I have to calculate bounds coordinates to query mongodb box on server side to get data before google maps is loaded.
How can I get four LatLng corners by center LatLng point, window width and height ...
- 131
2
votes
0
answers
516
views
QGIS Web Client zoom and scale
I have a problem with setting up zoom levels and max/min scale in QGIS web client. It looks like that values used in GlobalOptions.js file does not apply. Right now ZOOM_LEVELS is 70, maxScale 50 and ...
- 81
1
vote
0
answers
147
views
Enlarge region/features in shapefile
I'm completely new to QGIS.
I have a shapefile over the counties in Denmark (see here for what the shape file looks like). The counties around Copenhagen are rather small and I'd like to add an ...
- 111
121
votes
14
answers
317k
views
What ratio scales do Google Maps zoom levels correspond to?
Can anyone provide me with a link (or some details) on the actual ratio to "zoom level" figures for Google Maps?
e.g. Google Maps Level 13 = 1:20000
- 1,361