New answers tagged

0

If you can locate a couple of coordinates on your map you can use caltopo.com. convert your PDF to a JPG and upload it to a hosting environment on caltopo.com, zoom to the general area of your map click Add New Layer -> Geospatial Image enter the URL for your image and two reference coordinates right-click on your image which should be overlaid on the map ...


0

Check this review of 8 MOBILE GEODATA COLLECTORS FOR ANDROID http://www.50northspatial.org/8-mobile-geodata-collectors-android/ Below I will review a number of geodata collectors for Android platform. I only pick out the solutions I have dealt with myself, hence all written below is my own experience, no more. Furthermore, I will only consider free or ...


1

Typically you will have to rely on the GNSS device manufacturer's software to perform post-processing of field observations. You should be able to use the Mobile Mapper Office software to do this. I would recommend contacting the reseller who sold you the Mobile Mapper to source this software. Here is a link where you can download the software for now. ...


0

Another option, which may especially be suitable for ArcGIS users, is Esri Geoportal Server (not to be confused with Portal for ArcGIS.) Esri Geoportal Server is not a part of the ArcGIS platform, and is a stand-alone application: Esri Geoportal Server is a free, open source product that enables discovery and use of geospatial resources including ...


2

Mapalomalia can do that and it's free for public use. What you are trying to do has problems when geometry changes abruptly or topology changes in any way. Most commercial software I've researched triangulates horizons from top to bottom, (or you have to pick them manually). However, you have to preserve topology, and have a close geometry. That's why they ...


2

Look first at More Efficient Spatial join in Python without QGIS, ArcGIS, PostGIS, etc The results of Fiona are Python dictionaries (GeoJSON format) import fiona layer = fiona.open("test_regex.shp") # first feature first = layer.next() print first {'geometry': {'type': 'Polygon', 'coordinates': [[(203371.23902535878, 89863.381050732), ...


1

Here's a potential approach: I haven't tried this so your mileage may vary, but it should be quite doable (but it might require rather heavy-duty scripting). I'm starting to think in a similar direction for some projects I'm working on. Ingredients: QGIS PostGIS (likely the best storage medium for relational data but others could potentially be used) ...


1

You say your company wants to spend less and achieve more. If that's true, then there's really no better value than Esri software. Esri is the gold standard with GIS. Nothing else on the market is really at the same level in terms of accuracy, scale and capabilities. Open-Source GIS is getting better, but it's still very much a work in progress and you need ...


1

MangoMap has that feature out of the box. Here's a map that demonstrates the tool: http://mangomap.com/maps/51645/Query-Tool Disclaimer: I'm a founder of Mango ;-)


1

Arc GIS have introduced the image classification tool in version 10. If You want to classify the images using Arc Map. Check this tutorial of the tool. You may also use other softwares like ENVI or ERDAS IMAGINE for this purpose. For the case of ENVI this tutorial guides you through the process and can perform both supervised and unsupervised ...


3

You do not necessarily need to draw a map if you are working with an entered zip code. Turf.js which was made for working with JavaScript mapping however could be really useful. The aggregate function could be helpful you here if you can use the counterpoints of counties. You could also use polygons, but it will be more complicated. Simply using center ...


3

libpq allows us to connect to Postgres/postgis for read write operations. If you have installed Postgres,libpq is already available.It would be available at installation path like C:\Program Files\PostgreSQL\9.5\include . //To make use in C/C++, you include these header files #include "libpq/libpq-fs.h" #include "libpq-fe.h" #include <stdlib.h> ...


2

You could try using the Google Maps geocoding API (https://developers.google.com/maps/documentation/geocoding/intro). It works well, but there's a limit to 2,500 geocodes per user per day. Here's a function to help geocode using Google. If you go over the daily query limit, or over the per second limit of 10 per second you'll get an error message instead ...


2

There are a large number of FOSS options that would be suitable for a project like this. I am going to end up recommending that you use QGIS. I will address the question in three parts: Non-GIS options. GIS options, and why I recommend QGIS. Some pointers to QGIS tutorials. Non-GIS options Since you have come to a GIS-focused site, you are indicating ...


2

If you do choose to use a CAD, rather than GIS program for your needs, There are also open-source CAD programs like QCAD.


2

A free tool that will help you explore what you can do within GIS, is QGIS. It will most likely be a little tricky to digitize and import the information but you can start with loading a basemap (say Openstreetmap) and trace out the boundary of your property. Then, you can try to import some scans of your paper copies and geo-rectify them. This just means ...



Top 50 recent answers are included