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Add the option to display a marker at the start & finish points of an activity or route

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This commit is contained in:
Daniel Lintott
2017-12-16 13:05:16 +00:00
parent bbd2cc9e58
commit abbdf7af95
5 changed files with 180 additions and 5 deletions
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lib/ActivityShortcode.class.php
+3 -2
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@@ -10,7 +10,7 @@ class WPStrava_ActivityShortcode {
}
// Shortcode handler function
// [ride id=id som=metric map_width="100%" map_height="400px"]
// [ride id=id som=metric map_width="100%" map_height="400px" markers=false]
public static function handler( $atts ) {
self::$add_script = true;
@@ -20,6 +20,7 @@ class WPStrava_ActivityShortcode {
'map_width' => '480',
'map_height' => '320',
'athlete_token' => WPStrava::get_instance()->settings->get_default_token(),
'markers' => false,
);
extract( shortcode_atts( $defaults, $atts ) );
@@ -67,7 +68,7 @@ class WPStrava_ActivityShortcode {
</tr>
</tbody>
</table>' .
WPStrava_StaticMap::get_image_tag( $ride_details, $map_height, $map_width ) .
WPStrava_StaticMap::get_image_tag( $ride_details, $map_height, $map_width, $markers ) .
'</div>';
} // End if( $ride_details ).
} // handler
lib/Polyline.php
Executable
+152
View File
@@ -0,0 +1,152 @@
<?php
/**
* Polyline
*
* PHP Version 5.3
*
* A simple class to handle polyline-encoding for Google Maps
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Mapping
* @package Polyline
* @author E. McConville <emcconville@emcconville.com>
* @copyright 2009-2015 E. McConville
* @license http://www.gnu.org/licenses/lgpl.html LGPL v3
* @version GIT: $Id: db01b3fea5d96533da928252135ac8f247c1b250 $
* @link https://github.com/emcconville/google-map-polyline-encoding-tool
*/
/**
* Polyline encoding & decoding class
*
* Convert list of points to encoded string following Google's Polyline
* Algorithm.
*
* @category Mapping
* @package Polyline
* @author E. McConville <emcconville@emcconville.com>
* @license http://www.gnu.org/licenses/lgpl.html LGPL v3
* @link https://github.com/emcconville/google-map-polyline-encoding-tool
*/
class Polyline
{
/**
* Default precision level of 1e-5.
*
* Overwrite this property in extended class to adjust precision of numbers.
* !!!CAUTION!!!
* 1) Adjusting this value will not guarantee that third party
* libraries will understand the change.
* 2) Float point arithmetic IS NOT real number arithmetic. PHP's internal
* float precision may contribute to undesired rounding.
*
* @var int $precision
*/
protected static $precision = 5;
/**
* Apply Google Polyline algorithm to list of points.
*
* @param array $points List of points to encode. Can be a list of tuples,
* or a flat on dimensional array.
*
* @return string encoded string
*/
final public static function encode( $points )
{
$points = self::flatten($points);
$encodedString = '';
$index = 0;
$previous = array(0,0);
foreach ( $points as $number ) {
$number = (float)($number);
$number = (int)round($number * pow(10, static::$precision));
$diff = $number - $previous[$index % 2];
$previous[$index % 2] = $number;
$number = $diff;
$index++;
$number = ($number < 0) ? ~($number << 1) : ($number << 1);
$chunk = '';
while ( $number >= 0x20 ) {
$chunk .= chr((0x20 | ($number & 0x1f)) + 63);
$number >>= 5;
}
$chunk .= chr($number + 63);
$encodedString .= $chunk;
}
return $encodedString;
}
/**
* Reverse Google Polyline algorithm on encoded string.
*
* @param string $string Encoded string to extract points from.
*
* @return array points
*/
final public static function decode( $string )
{
$points = array();
$index = $i = 0;
$previous = array(0,0);
while ($i < strlen($string)) {
$shift = $result = 0x00;
do {
$bit = ord(substr($string, $i++)) - 63;
$result |= ($bit & 0x1f) << $shift;
$shift += 5;
} while ($bit >= 0x20);
$diff = ($result & 1) ? ~($result >> 1) : ($result >> 1);
$number = $previous[$index % 2] + $diff;
$previous[$index % 2] = $number;
$index++;
$points[] = $number * 1 / pow(10, static::$precision);
}
return $points;
}
/**
* Reduce multi-dimensional to single list
*
* @param array $array Subject array to flatten.
*
* @return array flattened
*/
final public static function flatten( $array )
{
$flatten = array();
array_walk_recursive(
$array, // @codeCoverageIgnore
function ($current) use (&$flatten) {
$flatten[] = $current;
}
);
return $flatten;
}
/**
* Concat list into pairs of points
*
* @param array $list One-dimensional array to segment into list of tuples.
*
* @return array pairs
*/
final public static function pair( $list )
{
return is_array($list) ? array_chunk($list, 2) : array();
}
}
lib/RouteShortcode.class.php
+3 -2
View File
@@ -9,7 +9,7 @@ class WPStrava_RouteShortcode {
}
// Shortcode handler function
// [route id=id som=metric map_width="100%" map_height="400px"]
// [route id=id som=metric map_width="100%" map_height="400px" markers=false]
public static function handler( $atts ) {
self::$add_script = true;
@@ -19,6 +19,7 @@ class WPStrava_RouteShortcode {
'map_width' => '480',
'map_height' => '320',
'athlete_token' => WPStrava::get_instance()->settings->get_default_token(),
'markers' => false,
);
extract( shortcode_atts( $defaults, $atts ) );
@@ -57,7 +58,7 @@ class WPStrava_RouteShortcode {
</tr>
</tbody>
</table>' .
WPStrava_StaticMap::get_image_tag( $route_details, $map_height, $map_width ) .
WPStrava_StaticMap::get_image_tag( $route_details, $map_height, $map_width, $markers ) .
'</div>';
} // End if( $route_details ).
} // handler
lib/StaticMap.class.php
+21 -1
View File
@@ -1,5 +1,7 @@
<?php
require_once WPSTRAVA_PLUGIN_DIR . 'lib/Polyline.php';
class WPStrava_StaticMap {
/**
@@ -12,8 +14,9 @@ class WPStrava_StaticMap {
* @param object $ride Ride object from strava.
* @param int $height Height of map in pixels.
* @param int $width Width of map in pixels.
* @param bool $markers Display start and finish markers.
*/
public static function get_image_tag( $ride, $height = 320, $width = 480 ) {
public static function get_image_tag( $ride, $height = 320, $width = 480, $markers = false ) {
$key = WPStrava::get_instance()->settings->gmaps_key;
// Short circuit if missing key or ride object doesn't have the data we need.
@@ -27,11 +30,28 @@ class WPStrava_StaticMap {
if ( ! empty( $ride->map->polyline ) && ( $url_len + strlen( $ride->map->polyline ) < $max_chars ) ) {
$url .= $ride->map->polyline;
$points = self::decode_polyline($ride->map->polyline);
} elseif ( ! empty( $ride->map->summary_polyline ) ) {
$url .= $ride->map->summary_polyline;
$points = self::decode_polyline($ride->map->summary_polyline);
}
if ($markers) {
$markers = '&markers=color:green|' . $points['start'][0] . ',' . $points['start'][1] .
'&markers=color:red|' . $points['finish'][0] . ',' . $points['finish'][1];
$url .= $markers;
}
return "<img class='wp-strava-img' src='{$url}' />";
}
private static function decode_polyline($enc) {
$points = Polyline::decode($enc);
$points = Polyline::pair($points);
$start = $points[0];
$finish = $points[count($points)-1];
return array('start' => $start, 'finish' => $finish);
}
}
readme.txt
+1
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@@ -22,6 +22,7 @@ Also takes the following optional parameters:
* map_width - width (width of image in pixels).
* map_height - height (height of image in pixels).
* athlete_token - specify a different athlete (you can copy this value from https://www.strava.com/settings/api or the wp-strava settings page at /wp-admin/options-general.php?page=wp-strava-options).
* markers - Display markers at the start/finish point (true/false, defaults to false).
[ride] is an alias for [activity] and will accept the same parameters (kept for backwards compatibility).