Tagged Questions

Google Maps is a web mapping service application and technology provided by Google free (for non-commercial use),

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1
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0answers
95 views

How to disable Google map zooming animation effect?

I am using Openlayers mapping library in my application. I have integrated Google map V3 & added other several WMS overlays, Vector layers etc. Every thing working fine. But I am facing big ...
1
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1answer
73 views

How to calculate degrees per pixel in a given image? Or .nth of degree?

I am trying to make very rough estimates of Lat/Long coordinates in some random parking lot images. If I visit any such random parking lot on a Google map, I can click some driving area and Google ...
0
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2answers
120 views

How to remove roads from Google satellite hybrid map in OpenLayers?

I am trying to display Google satellite map in Openlayers. So, I added Google Satellite Hybrid map. My problem is, I need to display labels(like POI, place name etc) but don't need any roads & its ...
0
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0answers
33 views

Display Google Maps Polygon Edge Distances in Meters?

How can I achieve this using the Google Maps API? The meters on each side.
2
votes
1answer
72 views

How to get a GML overlay on Google Maps?

Anyone know how to get a GML file to show as an overlay on Google Maps? To be honest I don't know my GML from my KML, or my ETRS89 from my WGS84, as this topic is completely new to me. A bit of ...
1
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1answer
113 views

Creating a World Population Density Map

I am trying to make a world population density Choropleth map (country level). The data I am using is publicly available on World Development Indicators website. Pretty much, I have an excel file ...
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0answers
17 views

Dot density inside polygon (kml co-ordinates)

I have a kmz url(its not in local), which has so many polygons in it. Which contains co-ordinates something like: <LinearRing> <coordinates>138.878021,-34.971903,0.0 ...
3
votes
1answer
114 views

Styled markers : how to get bouncing markers with location dots?

I want to mark important location with bigger markers (pointer with forks) and smaller location with normal markers (colored dots). I want big markers to bounce on hover. How to acheive this effect in ...
1
vote
1answer
199 views

Plotting Multiple Points on Google Map using VB.net

I am creating a database application using VB.net and MSSQL 2012. I have retrieved a list of customer from the database and want to plot them on google map. At it stands, I can only plot the first ...
3
votes
1answer
38 views

Exporting massive gps tracks to a map

I have about 1000 vehicle equiped by a GPS sensor and 3G connection. Each vehicle feeds a csv file -using 3G connection- with its current location every 5 sec. Each vehicle have its own CSV file. ...
0
votes
1answer
240 views

Zip code highlighted in google map

When we search for a zip code in Google Maps we get the area highlighted in the map with a dotted border. How is this calculated? How do they know how to draw the polygon? I'm looking at implementing ...
1
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0answers
67 views

How to check if a point is within bounded rectangle from Java

I make an AJAX request to retrieve data from a mysql database. I add the data to google.maps.Data layer as geojson. I would only like to load the data based on the viewport. To obtain the viewport ...
0
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0answers
169 views

Transforming between epsg:3857 and Google Maps Tile coordinates

Hio, I used to use a simple python project (https://github.com/hrldcpr/mercator.py) to convert between wgs84 and google maps tile coordinates. This project doesn't have a license, and looks like it ...
3
votes
1answer
70 views

Is google maps static api free?

I'd like to write an app which uses google maps (via javascript library like gmaps.js). I'll GET the GPS positions from my server and I'll use google maps+js library to draw them on map. I don't ...
1
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0answers
157 views

How to overlay a flat image onto google maps with two points of reference?

The Android API allows for images to be superimposed onto a map. To do so, the developer specifies a set of lat/long coordinates for an "anchor point" within the image, the width (or height) of the ...
2
votes
0answers
134 views

Create circles around a point on a map measuring the radius in hours

Disclaimer: I am not experienced in GIS and hope this question fits in this category. I was wondering whether it is somehow possible to create a circle* around a city, using Google Maps or the like, ...
2
votes
1answer
36 views

“Window” definition in Google Maps JavaScript API v3

I am trying to use Google Maps Javascript API in a java application through Nashorn (basically lets you run javascript in java). Anyway when I load the API I get an error that "window" is not defined ...
0
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0answers
32 views

Test scripts for google maps using selenium tool?

I want to test Google maps using selenium but since selenium works based on object identification properties whereas Google maps does not have DOM elements.Anybody here who can help me out to perform ...
1
vote
2answers
71 views

What is the significance of 591657550.5 as it relates to google maps scaling factor?

According to this gis stackexchange answer and this stackoverflow question the scale ratio for google maps at any given zoom level is 591657550.500000 / 2^(level-1). That's not the circumference of ...
-2
votes
1answer
80 views

Identifying projection for shapefile with unknown coordinate system, no z values and no measures? [duplicate]

I am attempting to create a GIS Project with multiple Brazilian cities. I have been collecting, and am interested in, shapefiles that delineate the neighborhood boundaries of said cities. One city's ...
3
votes
2answers
178 views

Adding XY Coordinates from GoogleMaps to ArcMap 10

I have a list of lat/long coordinates in .xlsx format. I imported this table into ArcMap, but when I plot the points, they are not showing up in the proper place. Instead of showing up in South ...
1
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0answers
20 views

Is there any way of knowing what Travel Modes are available for directions between two places in Google Maps v3?

Is there any way of knowing what Travel Modes are available for directions between two places in Google Maps v3? Of course, requesting directions for each travel mode and checking which ones return ...
3
votes
1answer
49 views

Conversion from Namibian Coordinates to Google Maps (WGS84)

I have coordinates in Namibia, but don't know how to convert them to use them in Google Maps. The system is Lo22/19°. Then Y: +55 435,89 X: -498 157,28 Can anyone help with a conversion?
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0answers
34 views

How to dissolve inner polygons in a multipolygon

I'm trying to get the boundary of a collection of zip codes. Here is my current sql: SELECT ST_AsText(ST_SimplifyPreserveTopology((ST_Union(geom)), .003)) as poly FROM zcta5_data WHERE zcta5 IN ...
1
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0answers
84 views

How to Legally Use Google Imagery and Maps in ArcGIS Desktop and Web Applications?

With companies like Arc2Earth and Spatial Energy offering solutions to view Google imagery and maps inside ArcGIS for Desktop, there is clearly a legal way to develop a similar product yourself. My ...
0
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0answers
287 views

How to Overlay the WMS Layer on Google map

I want to overlay WMS layer on Google layer of OpenLayers with my map server. but My WMS not Overlayed on it. my code is here: function init() { var map; map = new ...
1
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0answers
62 views

Google Map Projection Skew - Need correct Projection

I'm having a really difficult time resolving skewed grids when projecting onto Google maps using Alteryx outputs. Within the module, I'm taking GRD files and aggregating rows and columns to re-size ...
1
vote
0answers
11 views

How do i add online GeoServer layers on android mobile app [duplicate]

I am trying to develop an android app, and in this app I want to display a Google map and on this map I also want to add some layers on the Map which I have created from GeoServer. Basically my ...
0
votes
0answers
184 views

Google Maps legend ? Where do I find it for more information about them?

Can anyone point me where can I found information about Google Maps and their legend ? Since Google maps does not provide their legend, they display their colors like by showing the tan colors as ...
2
votes
1answer
268 views

How to calculate pixels per meter ratio, according to Google or Bing map zoom level?

I have an image and detect two points in the image. I want to calculate the distance between these two points. I'm using Google map and Bing map. I have x,y pixel values for both two points zoom ...
0
votes
0answers
22 views

Configure Google Maps to display travel time by bike?

I move around by bicycle but didn't find how to configure Google Maps so that it displays travel time by bike: "x min ride home" would be more useful to me than "x min drive home" :-) Does GM ...
1
vote
0answers
39 views

Showing Google Maps using ArcObjects?

Do you know how we can show Google Maps as a base map in arcObject stand alone map? For example is there any wms address from google map that we can use it to connect to it or somthing like that? I ...
0
votes
0answers
30 views

Embedding a open source topographic Earth (maybe Google Earth) onto a website?

For a project, I want to create a website that includes something that resembles Google Earth. For this website I would like the starry night background with the Earth in the middle (like that on ...
1
vote
1answer
77 views

Closest point on a line segment from point outside the line

From the above pic I found the value x from line (p1,p2) and point a. Using y=mx+b and an imaginary red line which is perpendicular to the black line having slope -1/m and the intersecting point ...
3
votes
2answers
2k views

Converting from an x-y coordinate system to latitude/longitude

I'm building an indoor wifi-based tracking system that can calculate the position of a device in meters relative to the sensors distributed throughout the building. So far I've gotten to the point ...
0
votes
1answer
51 views

How to create GoogleMaps/OSM hyperlink for given bbox coordinates

I have extracted the bbox coordinates from a shapefile and want to create a hyperlink for google maps respectively OSM. When you click on the hyperlink the map should be zoomed to the bbox extend and ...
0
votes
1answer
81 views

40k+ points from Shapefile, clustering them and populating on Google Maps/Webapp

I just started a new Python/Django webapp job related to GIS (and i'm totally new to GIS). Here is my task and what i have found so far, and i am stuck as to finding out what's the best way or the ...
0
votes
2answers
112 views

Unit of Google Maps API geometry services

When i call the method google.maps.geometry.spherical.computeDistanceBetween(from, to); it returns a number, is this distance in KiloMeters or Miles?? How can we find this and doc on this API?
0
votes
0answers
85 views

How to remove the 'Report a map error' message in Google Satellite imagery?

Using Google Satellite as a basemap, I see the message 'Report a map error' in the bottom right corner of the screen (when the map is over land). Here is an example of this message on a similar map. ...
2
votes
1answer
190 views

Image classification using google satellite images

Currently our expert user classifies locations by viewing the Google earth satellite image of a location. They consider circular areas of a 5km radius at a set zoom level. They evaluate the image for ...
0
votes
1answer
97 views

Image source of world political map for Google Maps overlay in Android?

I have searched a lot. But I am not able to find some high resolution image of world map showing countries in different colors without label, which I can slice and use to create tile overlay in my ...
0
votes
0answers
343 views

Smooth replay of gps points on google map

When first the google map is loaded we load data using php codes in the backend and draw a line connecting between each lat long. There after we check if the lat long point have some ...
1
vote
0answers
49 views

How to set QGIS action to open and search for features on Google Maps?

At the moment, I have an action that takes each term in an address field and conducts a search on EACH term in Google (ie. multiple tabs are opened for each term). The action code I have is the ...
0
votes
0answers
48 views

Retrieving all towns/cities/villages within 2km of river path?

I need to find all the cities/towns/villages that are within a 2km range along a river path. So the solution I have now is to create a google custom map, and draw a polygon which will be 2km from ...
0
votes
1answer
115 views

How to reduce the opacity of a Google Maps layer in CartoDB.js

I have a CartoDB.js-App where I load my vis using cartodb.createVis (I do not manually define Leaflet layers). How can I reduce the opacity of the Google Maps base layer? I tried the following, as ...
1
vote
2answers
155 views

Wherer is wrong with transforming a WGS84 [lon,lat] point onto google maps

I want to convert a longitude latitude point in WGS84 coordinate system to Google Maps(not google earth) coordinate, But when I put the converted point on google map, it always has a roughly 10km ...
2
votes
1answer
31 views

Where can I find equipment that will allow me to recreate a form of Google Streetview?

I am looking for more affordable equipment that would allow me to recreate the concept of Google's Streetview, as well as software that would make a comparable UI map (without it "belonging" to ...
1
vote
0answers
71 views

How to understand google map overlay type from object (polygon or polyLine)

var Line = new google.maps.Polyline({ path:predectionArray, editable: false, strokeColor: '#FF0000', strokeOpacity: 1.0, strokeWeight: 2 }); var Rect=new google.maps.Polygon({ ...
0
votes
0answers
139 views

Fixing Mapinfo export to Google Earth projection which is slightly off?

I have around 20 layers of data (points and polylines) in Mapinfo TAB files which I need to export to KML files, however the projection is slightly out. I have tried various different projection ...
1
vote
1answer
51 views

How do I display NYC community specific data on an interactive map without longitude/latitude coordinates?

I have downloaded the NY Department of Sanitation's Monthly Tonnage Collection data from https://data.cityofnewyork.us/City-Government/DSNY-Monthly-Tonnage-Data/ebb7-mvp5#revert and I want to use this ...