196 views

### Longitude to metres ratio given a latitude for Google Maps Static API stitching?

I'm working on a project that hopes to convert Google Maps static images into larger, stitched together maps. I have created an algorithm that given a starting and ending, latitude and longitude, it ...
• 5
670 views

### How is it possible to calculate azimuth from a single lat lon cordinate with x, y offsets in meters?

Is it possible to calculate the azimuth from a single latitude and longitude and the destination's distance x and y from the mentioned coordinate? Basically I have a single coordinate in WGS84, and I ...
• 141
346 views

### Calculate offline map download size for a square km for each zoom level?

I am working on estimation of how much will I have to download to make maps available offine at different zoom levels. What I am looking for is something like below. zoomLevel,sizeInKM,downloadInGB 1,...
• 101
1 vote
327 views

### How can I tile a region in Google Maps given a zoom level

I am searching for a way to generate a tiling of a grid region using Google Maps. I have found a way to generate a grid and as well as a reference for pixel to width ratios given a zoom level, but I ...
• 111
155 views

### Correct planet radius, for calculating metres per pixel?

I am putting together some code to create tiles from various maps, for various planetary bodies, but I am not sure which value of planet radius I should be using, for indicating the metres/pixel ...
• 269
1 vote
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 ...
37k views

### How to get current scale of a Leaflet map?

I've been looking through the Leaflet API to see if there is a getScale method or scale property of a map, and have't seen anything. Does anyone know if Leaflet provides a way to get the current map ...
• 333
27k views

### Google maps distance based on the zoom level [duplicate]

I have used google maps for displaying some locations using markers, based on the user's current location. User's current location is the center point of the map. The default zoom level is 12. In ...
• 161
2k views

### 1m cell size equivalent value in decimal degree

I'm doing re-sampling pixel size in ERDAS 2014,I'm using input image(Indian terrain) in GCS_WGS_84 projection. Now I have to keep out put cell size as 1m,what is the 1m equvivalent value in Decimal ...
• 1,451
2k 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 ...
1 vote