Mar 21
Spatial applications arise from a strong tradition of of the importance of spatial information and techniques to represent our place or other phenomena in our world. Maps are the basic concept to achive this.
Maps are informative.
Maps are directive.
Maps are aesthetic.
Maps are a lot of things.
Maps are changing…
In the era of the internet and new Web 2.0 techniques the question arise how much is the unterstanding about spatial information changing? What’s new in mapping? Is it a little or a lot? It think it is a lot and a little.
Hockenberry has a great presentation on this entitled with Design of Spatial Applications.
[via Hockenberry, MIT]
Written and submitted from Home, using my 802.11g WiFi network.
Feb 04
The OpenStreetMap project is growing. The project can be compared with wikipadia. OpenStreetMap is a free editable map of the whole world. It is made by people like you. OpenStreetMap allows you to view, edit and use geographical data in a collaborative way from anywhere on Earth.
“OpenStreetMap is a project aimed squarely at creating and providing free geographic data such as street maps to anyone who wants them. The project was started because most maps you think of as free actually have legal or technical restrictions on their use, holding back people from using them in creative, productive or unexpected ways.“
Contributors to OpenStreetMap take handheld GPS devices with them on journeys, or go out specially to record GPS tracks. They record street names, village names and other features using notebooks, digital cameras, and voice-recorders.
Back at the computer, contributors upload those GPS logs showing where they travelled, and trace-out the roads on OpenStreetMap’s collaborative database. Using their notes, contributors add the street names, information such as the type of road or path, and the connections between roads.
That data is then processed to produce detailed street-level maps, which can be published freely on sites such as Wikipedia, used to create handheld or in-car navigation devices, or printed and copied without restriction.
This Animation showing the development of OSM in the area Munich, the capital of Bavaria, Germany. Time shown: August 2006 until September 2007. This animation is also shown at the German page on Munich.
Continue reading »
Feb 04
To create a MapView within Android you onle have to use the MapView object. You can go through the code and see how it works. For the user interface hou need to have en element with the corresponing ID.
The Class:
package com.joesonic;
import android.app.Activity;
import android.os.Bundle;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
public class MapsMini extends MapActivity {
/** Called when the activity is first created. */
private MapView mapview;
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
mapview = (MapView)findViewById(R.id.mapview);
}
}
The Result:
Written and submitted from Home, using my 802.11g WiFi network.
Jan 29
I could not believe my eyes, when I read this message in the official support center of ESRI, and ESRI schould be the largest software company for Desktop GIS Systems. Thats poor…
The Message can also be seen here: http://support.esri.com/index.cfm?fa=knowledgebase.techarticles.articleShow&d=34262
Problem: ArcMap crashes periodically every half hour
Description
When Opera Web browser is installed on a system with ArcGIS this program often interferes with ArcGIS and causes it to systematically crash.
Cause
Opera Web browser is not supported by ArcGIS.
Solution or Workaround
Opera Web browser must be removed by the system.
WARNING: The instructions below include making changes to your operating system. It is recommended that you backup your operating system and files, including the registry, before proceeding. Consult with a qualified computer systems professional, if necessary.
ESRI cannot guarantee results from incorrect modifications while following these instructions. Therefore, use caution and proceed at your own risk.
-
Close all programs running.
-
Start > Control Panel > Add/Remove Programs.
-
Choose Opera Web browser > Remove.
-
Restart machine and start ArcMAP. It should no longer crash.
Created: 1/3/2008
Last Modified: 1/28/2008
[support.esri.com]
Written and submitted from Home, using my 802.11g WiFi network.
