Patch for wp-gpx-maps-utils.php

[Rob]

I posted yesterday but it wasn’t clear if the form accepted my text since I received an error afterwards. I have been working to get attachments=”true” to work with my photos that are not in an NG Gallery. I made a few code tweaks to the wp-gpx-maps-utils.php file to get it to work. Specifically, I found if the URL to the file is used, the GPS metadata doesn’t get returned by exif_read_data. I used the attachments feature to get the path to the file, which then will return the GPS metadata and allow lon/lat to be added.

I also had to debug some quirks with my data related to timing differences between my GPS and pics. I found using the exif DateTimeOriginal and an offset fixed my issues and tweaked the code to use those values.The old code reference the $p variable which looks to be a copy/paste from the nggallery code.

Now I have the pics linked but the URL is blank on the rendered map. You can see this at https://www.robbosch.com/backpacking-big-bend-outer-mountain-loop. Any suggestion on why the URL to the photo is blank? Once that is fixed, I think it all works.

Pasted my current function below which is working except for the display.

Sorry if this is a duplicate from before.

Thanks,
Rob

[code]
— wp-gpx-maps-utils.php.bak 2022-02-02 05:56:52.367435802 -0800
+++ wp-gpx-maps-utils.php 2022-02-02 06:00:16.362512263 -0800
@@ -25,6 +25,7 @@
$img_src = wp_get_attachment_image_src( $attachment_id, ‘full’ );^M
$img_thmb = wp_get_attachment_image_src( $attachment_id, ‘thumbnail’ );^M
$img_metadata = wp_get_attachment_metadata( $attachment_id );^M
+ $image_file = get_attached_file( $attachment_id, $unfiltered );^M
^M
$item = array();^M
$item[‘data’] = wp_get_attachment_link( $attachment_id, array( 105, 105 ) );^M
@@ -32,7 +33,7 @@
if ( is_callable( ‘exif_read_data’ ) ) {^M
^M
try {^M
– $exif = @exif_read_data( $img_src[0] );^M
+ $exif = @exif_read_data( $image_file );^M
} catch (Exception $e) {^M
$exif = false;^M
}^M
@@ -42,8 +43,8 @@
$item[‘lat’] = getExifGps( $exif[‘GPSLatitude’], $exif[‘GPSLatitudeRef’] );^M
if ( ( $item[‘lat’] != 0 ) || ( $item[‘lon’] != 0 ) ) {^M
$result[] = $item;^M
– } elseif ( isset( $p->imagedate ) ) {^M
– $_dt = strtotime( $p->imagedate ) + $dtoffset;^M
+ } elseif ( isset( $exif[‘DateTimeOriginal’] ) ) {^M
+ $_dt = strtotime( $exif[‘DateTimeOriginal’] ) + $dtoffset;^M
$_item = findItemCoordinate( $_dt, $dt, $lat, $lon );^M
if ( $_item != null ) {^M
$item[‘lat’] = $_item[‘lat’];^M
[\code]

[Autore]

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