A representation of a real-world objects on a map.

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0
votes
4answers
3k views

How to Clip a Shapefile of Circle features using a Raster using ArcGIS 10

I want to keep all the features in the shapefile that lie in the raster region and reject others. How do i do this? ------Adding More Details-------- Data to be Clipped: Is A Shapefile of 1 mile ...
5
votes
2answers
2k views

Clip (Analysis) in ArcGIS 10 running indefinitely

I am attempting to clip a series of polylines (cross sections) using a single polygon. There are approximately 2400 polyline features in my input featureclass. Is this too large for the Clip tool to ...
5
votes
1answer
999 views

Drag a Feature in ESRI, ArcObjects Engine (AxMapControl)

I'm trying to implement moving a point feature in a custom C# ArcGIS Engine application on an AxMapControl. I've already created a custom tool to do some other things. And I can track when the user is ...
11
votes
5answers
1k views

What is the fastest (performance-wise) way to serve PostGIS features?

I'm interested in the fastest way to serve PostGIS features. I can find several WMS improvements and alternatives (MapProxy, TileCache, Mapnik...) but not so many WFS Open Source improvements and ...
6
votes
1answer
3k views

How to select multiple Features from multiple Layers in OpenLayers?

Is there a way to select multiple features from multiple vector layers by using clickTolerance in click? I checked the documents of getFeature control and selectFeature control, seems not work in ...
4
votes
2answers
957 views

Replicating ArcMap's Point Sketch Geometry Editing (Feature Templates) in ArcObjects

I'm looking for a way to place, select, move, delete features inside a custom C# ArcObjects application (using AxMapControl). I found the exact behavior in ArcMap, but I want to save the user some ...
6
votes
1answer
411 views

Display Feedback “Stutters” When Moving Features

I have a custom tool for moving features that implements IDisplayFeedback and geometry-specific CoClasses to show the user where they are moving the feature. IMovePolygonFeedback polygonFeedback; ...
5
votes
3answers
827 views

Fastest way to merge a feature

I am writing a arc engine application that can take a shapefile, and merge a set of polygons together. Here is the code that I am using to merge the polygons: private static void ...
3
votes
2answers
2k views

How to create a feature class in a file geodatabase in ArcGIS 9.3 with Python?

I'm not entirely sure if I am using the correct terminology, so I apologize in advance. What I am looking to do is create a file geodatabase and add a feature class directly into that file ...
1
vote
3answers
835 views

CreateFeatureclass_management doesn't add a layer to the TOC of ArcMap10

I created a python script for a toolbox and I am wondering about the fact that CreateFeatureclass_management doesn't add the feature-class as layer in the actual dataframe. This does not happen in the ...
0
votes
0answers
601 views

Why am I getting an “Error while inserting populated row into Insert cursor” on saveEdits?

I've created a new feature layer where I am allowing users to add polygons. It has a few attributes, but I am not setting them on the graphic when I add it to the feature layer's graphics collection. ...
4
votes
1answer
4k views

Relabel Vector Points in OpenLayers

I have created two labeled vector points on an open layers map. I'm trying to change the label text dynamically. I tried changing the values where the stylemap gets the values from and calling ...
2
votes
1answer
9k views

Export list of coordinates in a points layer to spreadsheet?

This is similar to my previous question, but I would like to ask it for ArcGIS, instead of QGIS. If I am supposed to somehow merge the questions, please let me know. With an existing point feature ...
1
vote
4answers
4k views

Sum of areas in all each polygon layer?

I've got several layers/feature classes in an ArcMap 10 project. Thanks to everyone's help, I'm able to get the areas for the polygons contained within each layer. By opening the attribute tables ...
4
votes
1answer
482 views

Is there a way to get the X,Y from a feature class?

I currently have an instance of a selected feature class, and I want to be able to get the midpoint X,Y (if its polygon) or the X,Y (if its IPoint) of the feature from the layer, is there some build ...
7
votes
1answer
2k views

How to Verify if a FeatureLayer already exists?

I am currently working on a project where when user loads up their map (mxd) into our system, we create several custom featuerlayers for them. My problem is though, I have no idea how to check if I ...
3
votes
2answers
869 views

OpenLayers: Modify features without virtual vertices?

When using the modify feature functionality of OpenLayers, I get the option to move the individual vertices around. But I also get a set of virtual vertices - each vertex located on the edge between ...
4
votes
3answers
10k views

Hover/Popup feature problem

im really having an issue here. I am trying to realise a map where i can hover over the features and they get highlighted (works), then i want to be able to click them (works) , i also want a div to ...
3
votes
1answer
1k views

Adding an image instead of standard svg to Polymaps

I wanted to add a custom marker to my demo: http://drewwells.net/craigmaps/ Instead, I had to make a red dot to specify the place I wanted. Adding an image seems to want to layer that, but all I ...
11
votes
2answers
5k views

How to use label classes, expressions, and annotations?

I've always found that when it comes to python, vector analysis, QGIS gives ArcGIS a run for its money, hell some of the qgis plugins exceed ArcGIS's performance by a few hours; however, I always have ...
3
votes
2answers
6k views

ArcObjects (vba) update selected feature/record

I would like to edit a selected feature/record via ArcMap vba, but I'm not having much luck with this code sample (see code below). I'm not getting an error, but the record selected is not updating. ...
2
votes
0answers
214 views

Process to gather raster cells under features

I need to gather individual raster cells underneath a feature in a featureclass as quickly as possible. It seems that most ArcObjects functions have problem with island polygons, multi-part polygons, ...
4
votes
1answer
2k views

slow to draw mapservices after access featureLayers within an ESRI Mapservice using Javaascript API

I am working on creating an online map using ESRI mapservices as a basemap and existing mapservices on our arcserver.. The problem I am running into is that the mapservices we have here are really ...
2
votes
1answer
387 views

Has anyone successfully made a FeatureLayer from a view in DB2 and ArcSDE 10?

Lately it seems like every new ESRI feature fails for me - I must be cursed. I'm testing the use of a FeatureLayer to see if helps display and query features using the JavaScript API 2.0. This layer ...
1
vote
2answers
1k views

“Item not found in this collection” when trying to set the Shape on IFeatureBuffer

I'm working on code to open a 3rd party data file and convert it into a collection of features in a custom layer based on FeatureLayer. I have had no issue importing the data itself (nodal data for ...
10
votes
3answers
462 views

What are some of the features available in non-FOSS GIS software that you'd like to see in your favorite FOSS GIS

For example, a program I use (TransCAD) has the ability to do travel time matrices based on minimal data input, which is really useful if you're looking at doing back of the envelope type ...