Google Fusion Tables 中的热图问题
这是我用于搜索表格和制作叠加层的两个功能。 （地图是在不同的函数中创建的）。由于某种原因，点图可以正常工作，但热图不能与 where 子句一起使用。有什么见解吗？
function heatmap() {
var layer = new google.maps.FusionTablesLayer({
query: {
select: 'LOCATION',
from: '1614684',
where: "CRIME = 'HOMICIDE'"
},
heatmap: {
enabled: true
}
});
layer.setMap(map);
}
function dotmap() {
var layer = new google.maps.FusionTablesLayer({
query: {
select: 'LOCATION',
from: '1614684',
where: "CRIME = 'HOMICIDE'"
}
});
layer.setMap(map);
}
These are my two functions for searching my table and making overlays. (the map is created in a different function). For some reason, the dotmap one works fine, but the heatmap one doesn't work with the where clause. Any insight?
function heatmap() {
var layer = new google.maps.FusionTablesLayer({
query: {
select: 'LOCATION',
from: '1614684',
where: "CRIME = 'HOMICIDE'"
},
heatmap: {
enabled: true
}
});
layer.setMap(map);
}
function dotmap() {
var layer = new google.maps.FusionTablesLayer({
query: {
select: 'LOCATION',
from: '1614684',
where: "CRIME = 'HOMICIDE'"
}
});
layer.setMap(map);
}
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我认为问题与这里提到的相同：
https://groups.google.com/forum/# !topic/fusion-tables-users-group/MkZ8KJT6oic
简而言之，Google Fusion Tables 中的热图有点不稳定。您可能想使用类似 gheat 的东西，它以某种方式起作用，但不像我那么好和简单通缉。
I think the problem is the same as mentioned here:
https://groups.google.com/forum/#!topic/fusion-tables-users-group/MkZ8KJT6oic
In short, Heatmaps in Google Fusion Tables is a little flaky. You might want to use something like gheat which somehow worked, but not as nice and simple as I wanted.