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I have several Query layers that work fine for generic, long term date ranges such as: This shows all entries that have the previous YEAR in the date field. AND To_char(ds.calendar_date, 'YYYY') = To_char(( Extract(year FROM add_months(sysdate, -12)) ))This shows all entries of previous 12...

I'm working with Leaflet and nodejs and when a polygon layer is loaded when the map view is at world map, the polygon don't shows, I have to zoom in at approximately zoom 10 or 13 to show polygons. I was trying to use this plug-in but realy don't know how to use it. The lib...

Im not QGIS expert and I would like to ask the question. I have done projection like this: QGIS display world country shape files centered on pacific ocean using Robinson, Miller Cylindrical or other projection How to merge Russian borders into one polygon? Now it is divided on north Pacific...

I want to start with a county tax APN (Assessor's Parcel Number) and return a physical address (preferred) or latitude longitude coordinates. Is there a free way to do this on the internet? Maybe a big-data or open source project or API perhaps? أكثر...

I have copied the whole code of Find widget and added it into another widget. First widget is working fine and highlighting the feature(creating feature from geometry), second widget is also working fine. i.e. it is returning me the accurate and proper number of results, and same zoom extent but...

NASA satellite images show China as one of the most polluted countries in the world According to NASA, China has seen a dramatic increase in pollution in the past decade On Dec. 19, Beijing issued its second red alert for pollution in a month A thick layer of smog covers Beijing, the capital of...

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I've created a vector grid layer, and then labeled all the vertical lines. Based on answers to other questions I figuered out how to move them, but when I do that and save the edits, all the labels I have moved disappear... How do I prevent this from happening?I just want to number the vertical...

I want to do something when user changes one of TOC layer's symbol. I am using .NET in arcMap 10.0 . How can it possible with arcobjects ?Please , help.Specially I want to know, Is there any events that will fired when user change symbol of a layer in TOC?Thanks... أكثر...

I'm trying to get a list of my datasets from the API. In version 1 of the API, a 'viz' call would return vizualizations (marked as "derived") and the underlying data (marked as type "table"), but it appears the API 1.0 isn't supported anymore, and version 2 doesn't return it. I had hoped that...

noob here, i have problems to conect openrouteservice in my page, i need help. tnks and thats is my code http://pastebin.com/mn7VgHVR أكثر...

I working on several layers that share similar symbology in the arcview. I'm trying to remove duplicate Symbology from the legend. Manually I can do it by click "properties -> symbology" and then start to choose wha't to remove (see jpg2), but it will take a lot of time. I work with arcview...

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I want to apply unique symbol to each feature. i have used following code for doing that from qgis.core import *from PyQt4.QtGui import *# supply path to where is your qgis installedQgsApplication.setPrefixPath("/path/to/qgis/installation", True)# load providersQgsApplication.initQgis()# Get...

I want to apply unique symbol to each feature. i have used following code for doing that from qgis.core import *from PyQt4.QtGui import *# supply path to where is your qgis installedQgsApplication.setPrefixPath("/path/to/qgis/installation", True)# load providersQgsApplication.initQgis()# Get...

Our mission is to move from acquired knowledge to shared knowledge in the areas of water management, such as supply, sewerage, urban drainage or flood risk assessment, and our vision is to develop Giswater, an open software project with the goal to communicate any water simulation software...

EPANET EPANET is software that models water distribution piping systems. EPANET is public domain software that may be freely copied and distributed. It is a Windows 95/98/NT/XP program. EPANET performs extended period simulation of the water movement and quality behavior within pressurized...