mirror of
https://github.com/YunoHost-Apps/phpmyadmin_ynh.git
synced 2024-09-03 19:56:46 +02:00
361 lines
12 KiB
PHP
361 lines
12 KiB
PHP
<?php
|
|
/* vim: set expandtab sw=4 ts=4 sts=4: */
|
|
/**
|
|
* Base class for all GIS data type classes
|
|
*
|
|
* @package PhpMyAdmin-GIS
|
|
*/
|
|
|
|
if (! defined('PHPMYADMIN')) {
|
|
exit;
|
|
}
|
|
|
|
/**
|
|
* Base class for all GIS data type classes.
|
|
*
|
|
* @package PhpMyAdmin-GIS
|
|
*/
|
|
abstract class PMA_GIS_Geometry
|
|
{
|
|
/**
|
|
* Prepares and returns the code related to a row in the GIS dataset as SVG.
|
|
*
|
|
* @param string $spatial GIS data object
|
|
* @param string $label label for the GIS data object
|
|
* @param string $color color for the GIS data object
|
|
* @param array $scale_data data related to scaling
|
|
*
|
|
* @return string the code related to a row in the GIS dataset
|
|
* @access public
|
|
*/
|
|
public abstract function prepareRowAsSvg($spatial, $label, $color, $scale_data);
|
|
|
|
/**
|
|
* Adds to the PNG image object, the data related to a row in the GIS dataset.
|
|
*
|
|
* @param string $spatial GIS data object
|
|
* @param string $label label for the GIS data object
|
|
* @param string $color color for the GIS data object
|
|
* @param array $scale_data array containing data related to scaling
|
|
* @param object $image image object
|
|
*
|
|
* @return object the modified image object
|
|
* @access public
|
|
*/
|
|
public abstract function prepareRowAsPng($spatial, $label, $color,
|
|
$scale_data, $image
|
|
);
|
|
|
|
/**
|
|
* Adds to the TCPDF instance, the data related to a row in the GIS dataset.
|
|
*
|
|
* @param string $spatial GIS data object
|
|
* @param string $label label for the GIS data object
|
|
* @param string $color color for the GIS data object
|
|
* @param array $scale_data array containing data related to scaling
|
|
* @param TCPDF $pdf TCPDF instance
|
|
*
|
|
* @return TCPDF the modified TCPDF instance
|
|
* @access public
|
|
*/
|
|
public abstract function prepareRowAsPdf($spatial, $label, $color,
|
|
$scale_data, $pdf
|
|
);
|
|
|
|
/**
|
|
* Prepares the JavaScript related to a row in the GIS dataset
|
|
* to visualize it with OpenLayers.
|
|
*
|
|
* @param string $spatial GIS data object
|
|
* @param int $srid spatial reference ID
|
|
* @param string $label label for the GIS data object
|
|
* @param string $color color for the GIS data object
|
|
* @param array $scale_data array containing data related to scaling
|
|
*
|
|
* @return string the JavaScript related to a row in the GIS dataset
|
|
* @access public
|
|
*/
|
|
public abstract function prepareRowAsOl($spatial, $srid, $label,
|
|
$color, $scale_data
|
|
);
|
|
|
|
/**
|
|
* Scales each row.
|
|
*
|
|
* @param string $spatial spatial data of a row
|
|
*
|
|
* @return array array containing the min, max values for x and y cordinates
|
|
* @access public
|
|
*/
|
|
public abstract function scaleRow($spatial);
|
|
|
|
/**
|
|
* Generates the WKT with the set of parameters passed by the GIS editor.
|
|
*
|
|
* @param array $gis_data GIS data
|
|
* @param int $index index into the parameter object
|
|
* @param string $empty value for empty points
|
|
*
|
|
* @return string WKT with the set of parameters passed by the GIS editor
|
|
* @access public
|
|
*/
|
|
public abstract function generateWkt($gis_data, $index, $empty = '');
|
|
|
|
/**
|
|
* Returns OpenLayers.Bounds object that correspond to the bounds of GIS data.
|
|
*
|
|
* @param string $srid spatial reference ID
|
|
* @param array $scale_data data related to scaling
|
|
*
|
|
* @return string OpenLayers.Bounds object that
|
|
* correspond to the bounds of GIS data
|
|
* @access protected
|
|
*/
|
|
protected function getBoundsForOl($srid, $scale_data)
|
|
{
|
|
return 'bound = new OpenLayers.Bounds(); '
|
|
. 'bound.extend(new OpenLayers.LonLat('
|
|
. $scale_data['minX'] . ', ' . $scale_data['minY']
|
|
. ').transform(new OpenLayers.Projection("EPSG:'
|
|
. $srid . '"), map.getProjectionObject())); '
|
|
. 'bound.extend(new OpenLayers.LonLat('
|
|
. $scale_data['maxX'] . ', ' . $scale_data['maxY']
|
|
. ').transform(new OpenLayers.Projection("EPSG:'
|
|
. $srid . '"), map.getProjectionObject()));';
|
|
}
|
|
|
|
/**
|
|
* Updates the min, max values with the given point set.
|
|
*
|
|
* @param string $point_set point set
|
|
* @param array $min_max existing min, max values
|
|
*
|
|
* @return array the updated min, max values
|
|
* @access protected
|
|
*/
|
|
protected function setMinMax($point_set, $min_max)
|
|
{
|
|
// Seperate each point
|
|
$points = explode(",", $point_set);
|
|
|
|
foreach ($points as $point) {
|
|
// Extract cordinates of the point
|
|
$cordinates = explode(" ", $point);
|
|
|
|
$x = (float) $cordinates[0];
|
|
if (! isset($min_max['maxX']) || $x > $min_max['maxX']) {
|
|
$min_max['maxX'] = $x;
|
|
}
|
|
if (! isset($min_max['minX']) || $x < $min_max['minX']) {
|
|
$min_max['minX'] = $x;
|
|
}
|
|
$y = (float) $cordinates[1];
|
|
if (! isset($min_max['maxY']) || $y > $min_max['maxY']) {
|
|
$min_max['maxY'] = $y;
|
|
}
|
|
if (! isset($min_max['minY']) || $y < $min_max['minY']) {
|
|
$min_max['minY'] = $y;
|
|
}
|
|
}
|
|
return $min_max;
|
|
}
|
|
|
|
/**
|
|
* Generates parameters for the GIS data editor from the value of the GIS column.
|
|
* This method performs common work.
|
|
* More specific work is performed by each of the geom classes.
|
|
*
|
|
* @param string $value value of the GIS column
|
|
*
|
|
* @return array parameters for the GIS editor from the value of the GIS column
|
|
* @access protected
|
|
*/
|
|
protected function generateParams($value)
|
|
{
|
|
$geom_types = '(POINT|MULTIPOINT|LINESTRING|MULTILINESTRING'
|
|
. '|POLYGON|MULTIPOLYGON|GEOMETRYCOLLECTION)';
|
|
$srid = 0;
|
|
$wkt = '';
|
|
if (preg_match("/^'" . $geom_types . "\(.*\)',[0-9]*$/i", $value)) {
|
|
$last_comma = strripos($value, ",");
|
|
$srid = trim(substr($value, $last_comma + 1));
|
|
$wkt = trim(substr($value, 1, $last_comma - 2));
|
|
} elseif (preg_match("/^" . $geom_types . "\(.*\)$/i", $value)) {
|
|
$wkt = $value;
|
|
}
|
|
return array('srid' => $srid, 'wkt' => $wkt);
|
|
}
|
|
|
|
/**
|
|
* Extracts points, scales and returns them as an array.
|
|
*
|
|
* @param string $point_set string of comma sperated points
|
|
* @param array $scale_data data related to scaling
|
|
* @param boolean $linear if true, as a 1D array, else as a 2D array
|
|
*
|
|
* @return array scaled points
|
|
* @access protected
|
|
*/
|
|
protected function extractPoints($point_set, $scale_data, $linear = false)
|
|
{
|
|
$points_arr = array();
|
|
|
|
// Seperate each point
|
|
$points = explode(",", $point_set);
|
|
|
|
foreach ($points as $point) {
|
|
// Extract cordinates of the point
|
|
$cordinates = explode(" ", $point);
|
|
|
|
if (isset($cordinates[0]) && trim($cordinates[0]) != ''
|
|
&& isset($cordinates[1]) && trim($cordinates[1]) != ''
|
|
) {
|
|
if ($scale_data != null) {
|
|
$x = ($cordinates[0] - $scale_data['x']) * $scale_data['scale'];
|
|
$y = $scale_data['height']
|
|
- ($cordinates[1] - $scale_data['y']) * $scale_data['scale'];
|
|
} else {
|
|
$x = trim($cordinates[0]);
|
|
$y = trim($cordinates[1]);
|
|
}
|
|
} else {
|
|
$x = '';
|
|
$y = '';
|
|
}
|
|
|
|
|
|
if (! $linear) {
|
|
$points_arr[] = array($x, $y);
|
|
} else {
|
|
$points_arr[] = $x;
|
|
$points_arr[] = $y;
|
|
}
|
|
}
|
|
|
|
return $points_arr;
|
|
}
|
|
|
|
/**
|
|
* Generates JavaScript for adding an array of polygons to OpenLayers.
|
|
*
|
|
* @param array $polygons x and y coordinates for each polygon
|
|
* @param string $srid spatial reference id
|
|
*
|
|
* @return string JavaScript for adding an array of polygons to OpenLayers
|
|
* @access protected
|
|
*/
|
|
protected function getPolygonArrayForOpenLayers($polygons, $srid)
|
|
{
|
|
$ol_array = 'new Array(';
|
|
foreach ($polygons as $polygon) {
|
|
$rings = explode("),(", $polygon);
|
|
$ol_array .= $this->getPolygonForOpenLayers($rings, $srid) . ', ';
|
|
}
|
|
$ol_array = substr($ol_array, 0, strlen($ol_array) - 2);
|
|
$ol_array .= ')';
|
|
|
|
return $ol_array;
|
|
}
|
|
|
|
/**
|
|
* Generates JavaScript for adding points for OpenLayers polygon.
|
|
*
|
|
* @param array $polygon x and y coordinates for each line
|
|
* @param string $srid spatial reference id
|
|
*
|
|
* @return string JavaScript for adding points for OpenLayers polygon
|
|
* @access protected
|
|
*/
|
|
protected function getPolygonForOpenLayers($polygon, $srid)
|
|
{
|
|
return 'new OpenLayers.Geometry.Polygon('
|
|
. $this->getLineArrayForOpenLayers($polygon, $srid, false)
|
|
. ')';
|
|
}
|
|
|
|
/**
|
|
* Generates JavaScript for adding an array of LineString
|
|
* or LineRing to OpenLayers.
|
|
*
|
|
* @param array $lines x and y coordinates for each line
|
|
* @param string $srid spatial reference id
|
|
* @param bool $is_line_string whether it's an array of LineString
|
|
*
|
|
* @return string JavaScript for adding an array of LineString
|
|
* or LineRing to OpenLayers
|
|
* @access protected
|
|
*/
|
|
protected function getLineArrayForOpenLayers($lines, $srid,
|
|
$is_line_string = true
|
|
) {
|
|
$ol_array = 'new Array(';
|
|
foreach ($lines as $line) {
|
|
$points_arr = $this->extractPoints($line, null);
|
|
$ol_array .= $this->getLineForOpenLayers(
|
|
$points_arr, $srid, $is_line_string
|
|
);
|
|
$ol_array .= ', ';
|
|
}
|
|
$ol_array = substr($ol_array, 0, strlen($ol_array) - 2);
|
|
$ol_array .= ')';
|
|
|
|
return $ol_array;
|
|
}
|
|
|
|
/**
|
|
* Generates JavaScript for adding a LineString or LineRing to OpenLayers.
|
|
*
|
|
* @param array $points_arr x and y coordinates for each point
|
|
* @param string $srid spatial reference id
|
|
* @param bool $is_line_string whether it's a LineString
|
|
*
|
|
* @return string JavaScript for adding a LineString or LineRing to OpenLayers
|
|
* @access protected
|
|
*/
|
|
protected function getLineForOpenLayers($points_arr, $srid,
|
|
$is_line_string = true
|
|
) {
|
|
return 'new OpenLayers.Geometry.'
|
|
. ($is_line_string ? 'LineString' : 'LinearRing') . '('
|
|
. $this->getPointsArrayForOpenLayers($points_arr, $srid)
|
|
. ')';
|
|
}
|
|
|
|
/**
|
|
* Generates JavaScript for adding an array of points to OpenLayers.
|
|
*
|
|
* @param array $points_arr x and y coordinates for each point
|
|
* @param string $srid spatial reference id
|
|
*
|
|
* @return string JavaScript for adding an array of points to OpenLayers
|
|
* @access protected
|
|
*/
|
|
protected function getPointsArrayForOpenLayers($points_arr, $srid)
|
|
{
|
|
$ol_array = 'new Array(';
|
|
foreach ($points_arr as $point) {
|
|
$ol_array .= $this->getPointForOpenLayers($point, $srid) . ', ';
|
|
}
|
|
$ol_array = substr($ol_array, 0, strlen($ol_array) - 2);
|
|
$ol_array .= ')';
|
|
|
|
return $ol_array;
|
|
}
|
|
|
|
/**
|
|
* Generates JavaScript for adding a point to OpenLayers.
|
|
*
|
|
* @param array $point array containing the x and y coordinates of the point
|
|
* @param string $srid spatial reference id
|
|
*
|
|
* @return string JavaScript for adding points to OpenLayers
|
|
* @access protected
|
|
*/
|
|
protected function getPointForOpenLayers($point, $srid)
|
|
{
|
|
return '(new OpenLayers.Geometry.Point(' . $point[0] . ',' . $point[1] . '))'
|
|
. '.transform(new OpenLayers.Projection("EPSG:'
|
|
. $srid . '"), map.getProjectionObject())';
|
|
}
|
|
}
|
|
?>
|