权限没有，则隐藏 function forum_list_access_filter($forumlist, $gid, $allow = 'allowread') { global $grouplist; if (empty($forumlist)) return array(); if (1 == $gid) return $forumlist; $forumlist_filter = $forumlist; $group = $grouplist[$gid]; foreach ($forumlist_filter as $fid => $forum) { if (empty($forum['accesson']) && empty($group[$allow]) || !empty($forum['accesson']) && empty($forum['accesslist'][$gid][$allow])) { unset($forumlist_filter[$fid]); } unset($forumlist_filter[$fid]['accesslist']); } return $forumlist_filter; } function forum_filter_moduid($moduids) { $moduids = trim($moduids); if (empty($moduids)) return ''; $arr = explode(',', $moduids); $r = array(); foreach ($arr as $_uid) { $_uid = intval($_uid); $_user = user_read($_uid); if (empty($_user)) continue; if ($_user['gid'] > 4) continue; $r[] = $_uid; } return implode(',', $r); } function forum_safe_info($forum) { //unset($forum['moduids']); return $forum; } function forum_filter($forumlist) { foreach ($forumlist as &$val) { unset($val['brief'], $val['announcement'], $val['seo_title'], $val['seo_keywords'], $val['create_date_fmt'], $val['icon_url'], $val['modlist']); } return $forumlist; } function forum_format_url($forum) { global $conf; if (0 == $forum['category']) { // 列表URL $url = url('list-' . $forum['fid'], '', FALSE); } elseif (1 == $forum['category']) { // 频道 $url = url('category-' . $forum['fid'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = url('read-' . trim($forum['brief']), '', FALSE); } if ($conf['url_rewrite_on'] > 1 && $forum['well_alias']) { if (0 == $forum['category'] || 1 == $forum['category']) { $url = url($forum['well_alias'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = ($forum['threads'] && $forum['brief']) ? url($forum['well_alias'] . '-' . trim($forum['brief']), '', FALSE) : url($forum['well_alias'], '', FALSE); } } return $url; } function well_forum_alias() { $forumlist = forum_list_cache(); if (empty($forumlist)) return ''; $key = 'forum-alias'; static $cache = array(); if (isset($cache[$key])) return $cache[$key]; $cache[$key] = array(); foreach ($forumlist as $val) { if ($val['well_alias']) $cache[$key][$val['fid']] = $val['well_alias']; } return array_flip($cache[$key]); } function well_forum_alias_cache() { global $conf; $key = 'forum-alias-cache'; static $cache = array(); // 用静态变量只能在当前 request 生命周期缓存，跨进程需要再加一层缓存：redis/memcached/xcache/apc if (isset($cache[$key])) return $cache[$key]; if ('mysql' == $conf['cache']['type']) { $arr = well_forum_alias(); } else { $arr = cache_get($key); if (NULL === $arr) { $arr = well_forum_alias(); !empty($arr) AND cache_set($key, $arr); } } $cache[$key] = empty($arr) ? '' : $arr; return $cache[$key]; } ?>javascript - How to change opacity of overlaymaptypes? - Stack Overflow

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    javascript - How to change opacity of overlaymaptypes? - Stack Overflow

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    How do I change the overlayMapType opacity after I added to the map?

            var imgTypeOptions = {
            getTileUrl: function (coord, zoom) {                               
                return "myTile/" + f + ".png";        
            },
            tileSize: new google.maps.Size(256, 256),
            name: "Imagen",
            opacity: .5 //This is Ok, the first time set the opacity
            //but i want to change the opacity later
        };

...
        var imgMapType = new google.maps.ImageMapType(imgTypeOptions);
...
    map.overlayMapTypes.insertAt(0, imgMapType);

    I want to be able to click a link "25%" and set the opacity of the added layer to 25%.

    How do I change the overlayMapType opacity after I added to the map?

            var imgTypeOptions = {
            getTileUrl: function (coord, zoom) {                               
                return "myTile/" + f + ".png";        
            },
            tileSize: new google.maps.Size(256, 256),
            name: "Imagen",
            opacity: .5 //This is Ok, the first time set the opacity
            //but i want to change the opacity later
        };

...
        var imgMapType = new google.maps.ImageMapType(imgTypeOptions);
...
    map.overlayMapTypes.insertAt(0, imgMapType);

    I want to be able to click a link "25%" and set the opacity of the added layer to 25%.

    • javascript
    • google-maps
    • google-maps-api-3
    Share Improve this question edited Apr 9, 2013 at 21:57 Rolando asked Apr 9, 2013 at 21:50 RolandoRolando 62.7k104 gold badges279 silver badges422 bronze badges
    Add a ment  | 

    3 Answers 3

    Reset to default 5

    In 3.28 you have to use the getter. Please try the following code:

    map.overlayMapTypes.getAt(0).setOpacity(0.25)

    Have a look at the ImageMapType api documentation:

    https://developers.google./maps/documentation/javascript/reference#ImageMapType

    Something like this should work.

    map.overlayMapTypes[0].setOpacity(.25)

    In 2018, this is how you do with my working example.

    I use open street map tile, sample 

     z= zoom  
 x= coord.x  
 y= coord.y

https://tile.openstreetmap/10/261/380.png

https://tile.openstreetmap/${z}/${x}/${y}.png

    For tile, you should use ImageMapTypes,

    then use 

       map.overlayMapTypes.push(imageMapType);

    or 

       map.overlayMapTypes.insertAt(
        0, new CoordMapType(new google.maps.Size(256, 256)));

    to add new tile layer over the google base layer.

    You can set opacity by :

     // for old api

 //map.overlayMapTypes[0].setOpacity(0.25);





   //for 3.28 api  (in 2018)

   map.overlayMapTypes.getAt(0).setOpacity(0.5);

    here is my working example jsfiddle, for overlay tile use ImageMapTypes

    another way of doing this:

    sample: use coordMapType instead of ImageMapTypes

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