<?php
/**
* $Id$
*
* converts the coordinates created via the JavaScript
* functions in 'mod_measure.php' into an array which
* then holds both X- ans Y-values for each point in
* the formats 'realworld coordinate' and 'pdf_coordinate'
*
* @param string commaseperated X-values of the points (realworld coordinate)
* @param string commaseperated Y-values of the points (realworld coordinate)
*
* @return array Array looking like 0 => array(
* 'real_x' => 1234567,
* 'real_y' => 7654321,
* 'pdf_x' => 451.12,
* 'pdf_y' => 254.7
* )
*
* @see transformForPDF
*
* @author M. Jansen <jansen@terrestris.de>, 2006-05-26
*/
function makeCoordPairs($x_values, $y_values) {
$arr_x = explode(",", $x_values);
$arr_y = explode(",", $y_values);
$x_elems = count($arr_x);
$y_elems = count($arr_y);
$the_return_arr = array();
if ($x_elems == $y_elems) {
for ($i = 0; $i < $x_elems; $i ++) {
$the_return_arr[$i] = array(
"real_x" => $arr_x[$i],
"real_y" => $arr_y[$i],
"pdf_x" => transformForPDF($arr_x[$i], "x"),
"pdf_y" => transformForPDF($arr_y[$i], "y")
);
}
}
return $the_return_arr;
} // end of function makeCoordPairs
/**
* Transforms given realworld-coordinate according to its type (X or Y)
* into a pdf-coordinate. Needs the variables $mapOffset_left, $mapOffset_bottom,
* $map_height, $map_width, $coord to be defined in a global scope.
*
* @param float the realworld coordinate
* @param string type of coordinate either 'X' or 'Y'
*
* @see makeCoordPairs [needs this function]
*
* @return float the pdf-coordinate
*
* @author M. Jansen <jansen@terrestris.de>, 2006-05-26
*/
function transformForPDF ($theRealCoord, $theType) {
global $mapOffset_left, $mapOffset_bottom, $map_height, $map_width, $coord;
$thePDFvalue = "";
switch (mb_strtolower($theType)) {
case 'x':
// calculate pdf x-pos:
$real_shown_width = $coord[2] - $coord[0];
$ratio_to_display = $map_width / $real_shown_width;
$target_width = $theRealCoord - $coord[0];
$thePDFvalue = $mapOffset_left + ($target_width * $ratio_to_display);
break;
case 'y':
// calculate pdf y-pos:
$real_shown_height = $coord[3] - $coord[1];
$ratio_to_display = $map_height / $real_shown_height;
$target_height = $theRealCoord - $coord[1];
$thePDFvalue = $mapOffset_bottom + ($target_height * $ratio_to_display);
break;
default:
// a non valid parameter was given
$thePDFvalue = $theRealCoord;
break;
}
return $thePDFvalue;
} // end of function transformForPDF
/**
* extracts PDF-relevant information from a full coordinates array
* and returns a transformed array
*
* @param array the Array containing all infos about single coordinates
* created via makeCoordPairs()
*
* @return array the array containing PDF-Values for a polygon
*
* @see makeCoordPairs
*
* @author M. Jansen <jansen@terrestris.de>, 2006-05-26
*/
function makePolyFromCoord($theFullCoordinatesArray) {
$theRetArr = array();
foreach($theFullCoordinatesArray as $singlePoint) {
$theRetArr[] = $singlePoint['pdf_x'];
$theRetArr[] = $singlePoint['pdf_y'];
}
return $theRetArr;
} // end of function makePolyFromCoord
/**
* converts an array of coordinates (created e.g. by makeCoordPairs()) into
* an array thats needed to draw lines via line(x0, y0, x1, y1)
*
* @param array the Array containing all infos about single coordinates
* created via makeCoordPairs()
*
* @return array the array containing PDF-Values for single lines
*
* @see makeCoordPairs
*
* @author M. Jansen <jansen@terrestris.de>, 2006-05-26
*/
function makeStrokePointPairs($thePointArray) {
$cnt = count($thePointArray);
$theRetArray = array();
for($i = 0; $i < $cnt; $i++) {
if($i != $cnt - 1) {
$theRetArray[] = array(
$thePointArray[$i]['pdf_x'],
$thePointArray[$i]['pdf_y'],
$thePointArray[$i+1]['pdf_x'],
$thePointArray[$i+1]['pdf_y'],
);
} else {
$theRetArray[] = array(
$thePointArray[$i]['pdf_x'],
$thePointArray[$i]['pdf_y'],
$thePointArray[0]['pdf_x'],
$thePointArray[0]['pdf_y'],
);
}
}
return $theRetArray;
} // end of function makeStrokePointPairs
/**
* test whether the coordinates in an array form a closed polygon
* meaning that first an last point of polygon are equal
*
* @param array the Array containing all infos about single coordinates
* created via makeCoordPairs()
*
* @return bool is it closed (TRUE || FALSE)
*
* @see makeCoordPairs
*
* @author M. Jansen <jansen@terrestris.de>, 2006-05-26
*/
function isClosedPolygon($coord_arr) {
$nr_of = count($coord_arr);
if ($coord_arr[0]['pdf_x'] == $coord_arr[$nr_of-1]['pdf_x']
&& $coord_arr[0]['pdf_y'] == $coord_arr[$nr_of-1]['pdf_y']
&& $nr_of != 1) {
return TRUE;
} else {
return FALSE;
}
} // end of function isClosedPolygon
/**
* Adds the measured item to the PDF output.
*
* @param object reference (!) to the current ezPDF-Object
* @param string commaseperated X-Values of polygon / line
* @param string commaseperated Y-Values of polygon / line
* @param array configuration settings.
*
* @return void nothing
*
* @see makeCoordPairs
* @see isClosedPolygon
* @see makeStrokePointPairs
* @see makePolyFromCoord
* @see transformForPDF
* @see makeCoordPairs
*
* @author M. Jansen <jansen@terrestris.de>, 2006-05-26
*/
function addMeasuredItem($thePDF, $x_value_str, $y_value_str, $theConfArray = array()) {
// get global variable:
global $legendFilenameUserPolygon;
// create legend image:
$legend_width = 17;
$leg_img = imagecreate($legend_width, $legend_width);
// save previous state:
$thePDF->saveState();
// save colors for legend:
if(!defined("MAP_HAS_USER_POLYGON")) {
define("MAP_HAS_USER_POLYGON", "test");
}
// get the arrays
$theFullArr = makeCoordPairs($x_value_str, $y_value_str);
$thePolyArr = makePolyFromCoord($theFullArr);
if (isClosedPolygon($theFullArr)) {
$isClosed = TRUE;
}
else {
$isClosed = FALSE;
}
$nr_of_points = count($theFullArr);
// is fill option set?
// wenn der erste und letzte punkt nicht �bereinstimmen,
// so muss in jedem Falle dofill auf 0 gesetzt werden
if($theConfArray['do_fill'] != '' && $isClosed) {
$doFill = 1;
// which color to use for filling?
if (is_array($theConfArray['fill_color'])
&& $theConfArray['fill_color']['r'] != ''
&& $theConfArray['fill_color']['g'] != ''
&& $theConfArray['fill_color']['b'] != '') {
$thePDF->setColor($theConfArray['fill_color']['r'], $theConfArray['fill_color']['g'], $theConfArray['fill_color']['b']);
$legend_image_fill = $theConfArray['fill_color']['r'] . "," . $theConfArray['fill_color']['g'] . "," . $theConfArray['fill_color']['b'];
// color to legend file
$bg_color = imagecolorallocate($leg_img, round($theConfArray['fill_color']['r'] * 255), round($theConfArray['fill_color']['g'] * 255), round($theConfArray['fill_color']['b'] * 255));
} else {
$thePDF->setColor(0, 0, 0);
// color to legend file
$bg_color = imagecolorallocate($leg_img, 0, 0, 0);
}
} else {
$doFill = 0;
// color to legend file
$bg_color = imagecolorallocate($leg_img, -1, -1, -1);
}
// Do we need to stroke (outline)?
if($theConfArray['do_stroke'] != '') {
// which color to use for filling?
if (is_array($theConfArray['stroke_color'])
&& $theConfArray['stroke_color']['r'] != ''
&& $theConfArray['stroke_color']['g'] != ''
&& $theConfArray['stroke_color']['b'] != '') {
$thePDF->setStrokeColor($theConfArray['stroke_color']['r'], $theConfArray['stroke_color']['g'], $theConfArray['stroke_color']['b']);
$thePDF->setLineStyle($theConfArray['line_style']['width'], $theConfArray['line_style']['cap'], $theConfArray['line_style']['join'], $theConfArray['line_style']['dash']);
$theStrokePointPairs = makeStrokePointPairs($theFullArr);
for($i = 0; $i < count($theStrokePointPairs); $i++) {
$line = $theStrokePointPairs[$i];
if ($i != count($theStrokePointPairs) - 1
|| $isClosed) {
$thePDF->line($line[0], $line[1], $line[2], $line[3]);
$stroke_color_legend_image = imagecolorallocate($leg_img, round($theConfArray['stroke_color']['r'] * 255), round($theConfArray['stroke_color']['g'] * 255), round($theConfArray['stroke_color']['b'] * 255));
if (is_array($theConfArray['line_style']['dash'])
&& $theConfArray['line_style']['dash'][1] != ""
&& $theConfArray['line_style']['dash'][1] != 0) {
imagedashedline($leg_img, 0, 0, $legend_width-1, 0, $stroke_color_legend_image);
imagedashedline($leg_img, $legend_width-1, 1, $legend_width-1, $legend_width-1, $stroke_color_legend_image);
imagedashedline($leg_img, 0, 0, 0, $legend_width-1, $stroke_color_legend_image);
imagedashedline($leg_img, 0, $legend_width-1, $legend_width-1,$legend_width-1, $stroke_color_legend_image);
} else {
imageline($leg_img, 0, 0, $legend_width-1, 0, $stroke_color_legend_image);
imageline($leg_img, $legend_width-1, 0, $legend_width-1, $legend_width-1, $stroke_color_legend_image);
imageline($leg_img, $legend_width-1, $legend_width-1, 0, $legend_width-1, $stroke_color_legend_image);
imageline($leg_img, 0, $legend_width-1, 0, 0, $stroke_color_legend_image);
}
}
}
}
}
$thePDF->polygon($thePolyArr, $nr_of_points, $doFill);
// eventually create the file:
imagepng($leg_img, $legendFilenameUserPolygon);
$thePDF->restoreState();
} // end of function addMeasuredItem
/**
* Konvertiert einen Text in ein array aus einzelnen Zeilen. Parameter wie Zeichen pro
* zeile etc. k�nnen in der Funktion ge�ndert werden.
*/
function convert2lines($the_text) {
$words = explode(' ', $the_text);
$maxlines = 6;
$available_chars_per_line = 35;
$total_number_of_lines = 0;
$chars_current_line = 0;
$the_return_array = array();
foreach($words as $word) {
// trimme wort auf maximal erlaubte zeichenzahl
$word_fit = mb_substr($word, 0, $available_chars_per_line);
$chars = preg_split('//', $word_fit, -1, PREG_SPLIT_NO_EMPTY);
if(count($chars) + $chars_current_line + 1 < $available_chars_per_line && $total_number_of_lines < $maxlines) {
$chars_current_line += count($chars) + 1;
$the_return_array[$total_number_of_lines] .= " " . $word_fit;
} elseif($total_number_of_lines < $maxlines) {
$chars_current_line = count($chars) + 1;
$the_return_array[$total_number_of_lines + 1] = " " . $word_fit;
$total_number_of_lines++;
}
}
return $the_return_array;
} // end of function convert2lines
/**
* Adds two white polygons to hide any user elements outside the mapframe:
* First all A-Areas are filled, then all B-Areas. This is a rather grumpy
* way out of having user edited stuff flying outside the mapframe.
*
* @example <pre>
* BBBBBBBBBBBBBBBBBBBBBBBBBBBBAAA
* BBBBBBBBBBBBBBBBBBBBBBBBBBBBAAA
* BBB AAA
* BBB AAA
* BBB Mapframe AAA
* BBB AAA
* BBB AAA
* BBB AAA
* AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
* AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
* </pre>
*
* @param reference (!, pass over with '&') to the pdf-file
* @author M. Jansen <jansen@terrestris.de>
*/
function hideElementsOutsideMapframe($pdf) {
// get globals
global $mapOffset_left, $map_width, $mapOffset_bottom, $map_height;
$pdf->saveState();
$pdf->setColor(1, 1, 1);
// The AAA-Part
$allOutside = array(
0 , 0, // 1st coord-pair
$pdf->ez['pageWidth'] , 0, // 2nd coord-pair
$pdf->ez['pageWidth'] , $pdf->ez['pageHeight'], // ...
$mapOffset_left + $map_width , $pdf->ez['pageHeight'],
$mapOffset_left + $map_width , $mapOffset_bottom,
0 , $mapOffset_bottom,
0 , 0
);
// draw polygon
$pdf->polygon($allOutside, 7, 1);
// The BBB-part
$allOutside = array(
0 , $mapOffset_bottom, // 1st coord-pair
$mapOffset_left , $mapOffset_bottom, // 2nd coord-pair
$mapOffset_left , $mapOffset_bottom + $map_height, // ...
$mapOffset_left + $map_width , $mapOffset_bottom + $map_height,
$mapOffset_left + $map_width , $pdf->ez['pageHeight'],
0 , $pdf->ez['pageHeight'],
0 , $mapOffset_bottom,
);
// draw polygon
$pdf->polygon($allOutside, 7, 1);
$pdf->restoreState();
}
?>