Adding where to your ruby apps
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This document discusses adding geographic information system (GIS) capabilities to Ruby applications. It introduces GIS concepts like geocoding and routing. It explains how to geocode addresses in Ruby using the Geocoder gem. While ESRI software provides APIs for other languages, it only offers a REST API for Ruby developers. The rgis Ruby library makes working with GIS data easier by handling projections and coordinate systems. It provides examples of projecting points between coordinate systems. Developers are invited to contribute to the open source rgis project to help improve GIS support in Ruby.
![using System.Windows.Controls;
Project X,Y (ESRI .Net Silverlight API)
using System.Windows;
using ESRI.ArcGIS.Client.Geometry;
using ESRI.ArcGIS.Client.Tasks;
using ESRI.ArcGIS.Client;
using System.Collections.Generic;
using ESRI.ArcGIS.Client.Symbols;
namespace ArcGISSilverlightSDK
{
public partial class Project : UserControl
{
GeometryService geometryService;
GraphicsLayer graphicsLayer;
public Project()
{
InitializeComponent();
geometryService = new GeometryService("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer");
geometryService.ProjectCompleted += geometryService_ProjectCompleted;
geometryService.Failed += geometryService_Failed;
graphicsLayer = MyMap.Layers["MyGraphicsLayer"] as GraphicsLayer;
}
private void ProjectButton_Click(object sender, System.Windows.RoutedEventArgs e)
{
double x;
double y;
if (!double.TryParse(XTextBox.Text, out x) || !double.TryParse(YTextBox.Text, out y))
{
MessageBox.Show("Enter valid coordinate values.");
return;
}
MapPoint inputMapPoint = new MapPoint(x, y, new SpatialReference(4326));
geometryService.ProjectAsync(new List<Graphic>() { new Graphic() { Geometry = inputMapPoint } }, MyMap.SpatialReference, inputMapPoint);
}
void geometryService_ProjectCompleted(object sender, GraphicsEventArgs e)
{
Graphic resultGraphic = e.Results[0];
if (resultGraphic.Geometry.Extent != null)
{
resultGraphic.Symbol = LayoutRoot.Resources["RoundMarkerSymbol"] as SimpleMarkerSymbol;
MapPoint resultMapPoint = resultGraphic.Geometry as MapPoint;
resultGraphic.Attributes.Add("Output_CoordinateX", resultMapPoint.X);
resultGraphic.Attributes.Add("Output_CoordinateY", resultMapPoint.Y);
MapPoint inputMapPoint = e.UserState as MapPoint;
resultGraphic.Attributes.Add("Input_CoordinateX", inputMapPoint.X);
resultGraphic.Attributes.Add("Input_CoordinateY", inputMapPoint.Y);
graphicsLayer.Graphics.Add(resultGraphic);
MyMap.PanTo(resultGraphic.Geometry);
}
else
{
MessageBox.Show("Invalid input coordinate, unable to project.");
}
}
void geometryService_Failed(object sender, TaskFailedEventArgs e)
{
MessageBox.Show("Geometry Service error: " + e.Error);
}
}
}](https://image.slidesharecdn.com/addingwheretoyourrubyapps-111115181336-phpapp01/85/Adding-where-to-your-ruby-apps-35-320.jpg)
Adding where to your ruby apps
- 1. Adding Where To Your Ruby Apps @bsao - Robson Junior @rpepato - Roberto Pepato
- 2. Who are these guys ?
- 3. GIS?
- 4. Why GIS?
- 5. Why GIS?
- 7. Soft Part
- 8. reverse geocoding reverse geocoding reverse geocoding reverse geocoding geocoding geocoding routing routing
- 9. How to work with Geocoding in Ruby ?
- 12. Utilities
- 13. Mining
- 14. Security
- 15. Oil & Gas
- 18. Hard Part
- 19. Many Projections
- 20. Many Zones
- 21. A whole
- 23. A whole Dif鍖cult Part Easy Part
- 25. Market
- 26. OpenSource Grass GIS
- 28. ESRI for Ruby ?
- 29. ESRI for Ruby ? #fail
- 30. ESRI for Ruby ? #fail Designed for C, C++, .Net, Java, Flex and Python*
- 31. ESRI guys told us: Dont worry, we will provide you with a REST API { :get, :put, :post, :delete }
- 32. Seriously ? REST ? No semantics No resources
- 33. rgis - hard (boring?) part made easy
- 35. using System.Windows.Controls; Project X,Y (ESRI .Net Silverlight API) using System.Windows; using ESRI.ArcGIS.Client.Geometry; using ESRI.ArcGIS.Client.Tasks; using ESRI.ArcGIS.Client; using System.Collections.Generic; using ESRI.ArcGIS.Client.Symbols; namespace ArcGISSilverlightSDK { public partial class Project : UserControl { GeometryService geometryService; GraphicsLayer graphicsLayer; public Project() { InitializeComponent(); geometryService = new GeometryService("http://sampleserver3.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer"); geometryService.ProjectCompleted += geometryService_ProjectCompleted; geometryService.Failed += geometryService_Failed; graphicsLayer = MyMap.Layers["MyGraphicsLayer"] as GraphicsLayer; } private void ProjectButton_Click(object sender, System.Windows.RoutedEventArgs e) { double x; double y; if (!double.TryParse(XTextBox.Text, out x) || !double.TryParse(YTextBox.Text, out y)) { MessageBox.Show("Enter valid coordinate values."); return; } MapPoint inputMapPoint = new MapPoint(x, y, new SpatialReference(4326)); geometryService.ProjectAsync(new List<Graphic>() { new Graphic() { Geometry = inputMapPoint } }, MyMap.SpatialReference, inputMapPoint); } void geometryService_ProjectCompleted(object sender, GraphicsEventArgs e) { Graphic resultGraphic = e.Results[0]; if (resultGraphic.Geometry.Extent != null) { resultGraphic.Symbol = LayoutRoot.Resources["RoundMarkerSymbol"] as SimpleMarkerSymbol; MapPoint resultMapPoint = resultGraphic.Geometry as MapPoint; resultGraphic.Attributes.Add("Output_CoordinateX", resultMapPoint.X); resultGraphic.Attributes.Add("Output_CoordinateY", resultMapPoint.Y); MapPoint inputMapPoint = e.UserState as MapPoint; resultGraphic.Attributes.Add("Input_CoordinateX", inputMapPoint.X); resultGraphic.Attributes.Add("Input_CoordinateY", inputMapPoint.Y); graphicsLayer.Graphics.Add(resultGraphic); MyMap.PanTo(resultGraphic.Geometry); } else { MessageBox.Show("Invalid input coordinate, unable to project."); } } void geometryService_Failed(object sender, TaskFailedEventArgs e) { MessageBox.Show("Geometry Service error: " + e.Error); } } }
- 37. Project X,Y (rgis) point = RGis::Point.new(15,17) new_point = point.project(:from => 4326, :to => 102100)
- 40. Text @bsao @rpepato Join us to make GIS easier: https://github.com/rgis