RSS

Category Archives: Geo Programming

Video

Up and Running MapServer in Windows

Advertisements
 
Leave a comment

Posted by on April 5, 2017 in Geo Programming

 

Tags: ,

Video

How to Convert Shape file into geojson

 
Leave a comment

Posted by on April 3, 2017 in Geo Programming

 

Tags: ,

Google Map InfoBox

<!DOCTYPE html> 
<html> 
<head> 
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script> 
<script type="text/javascript" src="http://google-maps-utility-library-v3.googlecode.com/svn/trunk/infobox/src/infobox.js"></script> 
<script type="text/javascript"> 
    var ib = null;
    var theMap = null; 
function initialize() {
    var latlng = new google.maps.LatLng(55.672962361614566, 12.56587028503418);

    var myMapOptions = {
         zoom: 15
        ,center: latlng
        ,mapTypeId: google.maps.MapTypeId.ROADMAP
        ,streetViewControl: false
    };
    theMap = new google.maps.Map(document.getElementById("map_canvas"), myMapOptions);
// namn
var name=[];
name.push('Test 1');
name.push('Test 2');

// positioner
var position=[];
position.push(new google.maps.LatLng(55.667093265894245,12.581255435943604));
position.push(new google.maps.LatLng(55.66453963191134, 12.584795951843262));

// infoboxes
var infobox = [];
infobox.push("<div>Hello 1</div>");
infobox.push("<div>Hello 2</div>");

  ib = new InfoBox({});

for (i = 0; i < position.length; i += 1) {
// Call function
createMarkers(position[i], infobox[i], name[i]);
}

function createMarkers(position,content,name) {
    // alert("createMarkers("+position+","+content+","+name+")");
    var marker = new google.maps.Marker({
        map: theMap,
        draggable: false,
        position: position,
        visible: true,
        title: name
    });

    var boxText = document.createElement("div");
    boxText.style.cssText = "background: yellow; width: 300px; height: 70px; padding: 5px;";
    boxText.innerHTML = content;

    var myOptions = {
         content: boxText
        ,disableAutoPan: false
        ,maxWidth: 0
        ,pixelOffset: new google.maps.Size(-37, -120)
        ,zIndex: null
        ,boxStyle: { 
            background: "url('tipbox.gif') no-repeat"
            ,opacity: 1
            ,width: "300px"
         }
        ,closeBoxMargin: "5px 5px 5px 5px"
        ,closeBoxURL: "http://www.google.com/intl/en_us/mapfiles/close.gif"
        ,infoBoxClearance: new google.maps.Size(1, 1)
        ,isHidden: false
        ,pane: "floatPane"
        ,enableEventPropagation: false
    };

    google.maps.event.addListener(marker, "click", function (e) {
     alert("click");
        ib.setOptions(myOptions);
        ib.open(theMap, this);
    });

    ib.open(theMap, marker);
    ib.hide();

    }

}
</script> 

<title>Creating and Using an InfoBox</title> 
</head> 
<body onload="initialize()"> 
<div id="map_canvas" style="width: 100%; height: 400px"></div></body>
</html>

 
Leave a comment

Posted by on September 14, 2015 in Geo Programming

 

Tags: ,

Link

http://gis.stackexchange.com/a/34613/14109

 
Leave a comment

Posted by on May 5, 2015 in Geo Programming

 

Tags:

OpenLayers 3 Map with Marker

OpenLayers 3 Map

<!doctype html>
<html lang="en">
  <head>
    <link rel="stylesheet" href="http://openlayers.org/en/v3.2.1/css/ol.css" type="text/css">
    <style>
      .map {
        height: 400px;
        width: 100%;
      }
    </style>
    <script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
    <script src="http://openlayers.org/en/v3.2.1/build/ol.js" type="text/javascript"></script>
    <title>OpenLayers 3 example</title>
  </head>
  <body>
    <h2>My Map</h2>
    <div id="map" class="map"></div>
    
    <script>
    var map = new ol.Map({
        target: 'map',
        renderer: 'canvas',
        layers: [
            new ol.layer.Tile({source: new ol.source.OSM()})
        ],
        view: new ol.View({
            //projection: 'EPSG:900913',
            center: ol.proj.transform([80.6350, 7.2964], 'EPSG:4326', 'EPSG:3857'),
            zoom: 10
        })

    });
    //Full Screen
    var myFullScreenControl = new ol.control.FullScreen();
    map.addControl(myFullScreenControl);

    map.addOverlay(new ol.Overlay({
        position: ol.proj.transform(
                [80.6350, 7.2964],
                'EPSG:4326',
                'EPSG:3857'
                ),
        element: $('<img src="//map.geo.admin.ch/1403704943/img/marker.png">')
    }));

    map.on('singleclick', function(evt) {
        var coord = evt.coordinate;
        var transformed_coordinate = ol.proj.transform(coord, "EPSG:900913", "EPSG:4326");
        console.log(transformed_coordinate);
    });
    

</script>

  </body>
</html>
 
1 Comment

Posted by on March 13, 2015 in Geo Programming

 

Tags:

Google Map Polygons Demo

polygon_area

How to get coordinates of a polygon?

How to delete a polygon?

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="UTF-8">
<title>Drawing Tools</title>
<script src="jquery-1.10.2.js"></script>

<script type="text/javascript"
src="http://maps.google.com/maps/api/js?sensor=false&libraries=drawing"></script>
<style type="text/css">
#map, html, body {
padding: 0;
margin: 0;
height: 100%;

}

#panel {
width: 200px;
font-family: Arial, sans-serif;
font-size: 13px;
float: right;
margin: 10px;
}

#color-palette {
clear: both;
}

.color-button {
width: 14px;
height: 14px;
font-size: 0;
margin: 2px;
float: left;
cursor: pointer;
}

#delete-button {
margin-top: 5px;
}
</style>
<script type="text/javascript">
var drawingManager;
var selectedShape;
var colors = ['#1E90FF', '#FF1493', '#32CD32', '#FF8C00', '#4B0082'];
var selectedColor;
var colorButtons = {};
var polygons = [];
var drawingManager = null;
var bermudaTriangle;

function clearSelection() {
if (selectedShape) {
selectedShape.setEditable(false);
selectedShape = null;
}
}

function setSelection(shape) {
clearSelection();
selectedShape = shape;
shape.setEditable(true);
selectColor(shape.get('fillColor') || shape.get('strokeColor'));
}

function deleteSelectedShape() {
if (selectedShape) {
selectedShape.setMap(null);
}
}

function selectColor(color) {
selectedColor = color;
for (var i = 0; i < colors.length; ++i) {
var currColor = colors[i];
colorButtons[currColor].style.border = currColor == color ? '2px solid #789' : '2px solid #fff';
}

// Retrieves the current options from the drawing manager and replaces the
// stroke or fill color as appropriate.
var polylineOptions = drawingManager.get('polylineOptions');
polylineOptions.strokeColor = color;
drawingManager.set('polylineOptions', polylineOptions);

var rectangleOptions = drawingManager.get('rectangleOptions');
rectangleOptions.fillColor = color;
drawingManager.set('rectangleOptions', rectangleOptions);

var circleOptions = drawingManager.get('circleOptions');
circleOptions.fillColor = color;
drawingManager.set('circleOptions', circleOptions);

var polygonOptions = drawingManager.get('polygonOptions');
polygonOptions.fillColor = color;
drawingManager.set('polygonOptions', polygonOptions);
}

function setSelectedShapeColor(color) {
if (selectedShape) {
if (selectedShape.type == google.maps.drawing.OverlayType.POLYLINE) {
selectedShape.set('strokeColor', color);
} else {
selectedShape.set('fillColor', color);
}
}
}

function makeColorButton(color) {
var button = document.createElement('span');
button.className = 'color-button';
button.style.backgroundColor = color;
google.maps.event.addDomListener(button, 'click', function() {
selectColor(color);
setSelectedShapeColor(color);
});

return button;
}

function buildColorPalette() {
var colorPalette = document.getElementById('color-palette');
for (var i = 0; i < colors.length; ++i) {
var currColor = colors[i];
var colorButton = makeColorButton(currColor);
colorPalette.appendChild(colorButton);
colorButtons[currColor] = colorButton;
}
selectColor(colors[0]);
}

function initialize() {
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 10,
center: new google.maps.LatLng(22.344, 114.048),
mapTypeId: google.maps.MapTypeId.ROADMAP,
disableDefaultUI: true,
zoomControl: true
});

var polyOptions = {
strokeWeight: 0,
fillOpacity: 0.45,
editable: true
};
// Creates a drawing manager attached to the map that allows the user to draw
// markers, lines, and shapes.
drawingManager = new google.maps.drawing.DrawingManager({
drawingMode: google.maps.drawing.OverlayType.POLYGON,
markerOptions: {
draggable: true
},
polylineOptions: {
editable: true
},
rectangleOptions: polyOptions,
circleOptions: polyOptions,
polygonOptions: polyOptions,
map: map
});

google.maps.event.addListener(drawingManager, 'overlaycomplete', function(e) {
if (e.type != google.maps.drawing.OverlayType.MARKER) {
// Switch back to non-drawing mode after drawing a shape.
drawingManager.setDrawingMode(null);

// Add an event listener that selects the newly-drawn shape when the user
// mouses down on it.
var newShape = e.overlay;
newShape.type = e.type;
google.maps.event.addListener(newShape, 'click', function() {
setSelection(newShape);
});
setSelection(newShape);
}
});

// Clear the current selection when the drawing mode is changed, or when the
// map is clicked.
google.maps.event.addListener(drawingManager, 'drawingmode_changed', clearSelection);
google.maps.event.addListener(map, 'click', clearSelection);
google.maps.event.addDomListener(document.getElementById('delete-button'), 'click', deleteSelectedShape);

buildColorPalette();
google.maps.event.addListener(drawingManager, 'overlaycomplete', function(polygon) {
polygons.push(polygon);

});

}
google.maps.event.addDomListener(window, 'load', initialize);

function pointsToText() {

for (i = 0; i < polygons.length; i++) {
var coordinates = (polygons[i].overlay.getPath().getArray());

for (i = 0; i < coordinates.length; i++) {

$("#points").append("(" + coordinates[i]['k'] + "," + coordinates[i]['A'] + "),");

}
}
}
</script>
</head>
<body>
<div id="panel">
<div id="color-palette"></div>
<div>
<button id="delete-button">Delete Selected Shape</button>
</div>
<div>
<input type="button" onclick="pointsToText()" value="Get Coordinates">
<textarea id="points" cols="30" rows="20"></textarea><br>

</div>

</div>
<div id="map"></div>

</body>
</html>

 
1 Comment

Posted by on March 15, 2014 in Geo Programming, JavaScript

 

Tags:

MapServer + PostGIS + pgRouting + OpenLayers

 
2 Comments

Posted by on October 25, 2013 in Geo Programming

 

Tags: , , ,