更改地图上的阴影 [英] Changing shading on a map
问题描述
我有办公地点/办公桌的黑白地图。我从基于位置/桌面的数据库中提取数据。
地图是单个图像,我将为每个位置绘制热点以进行链接到位置特定数据。
我需要更新地图上的位置(办公桌),当它从数据库加载时,基于我从中提取的数据进行着色数据库。因此,不是看到全白色和黑色图像,而是会看到一些带阴影的区域,但黑色需要显示。
我在寻找许多透明图像在主图像的顶部?我该怎么研究?
谢谢,
Patrick
I've got a black and white map of office locations/desks. I'm pulling data from a database based on location/desk.
The map is one single image, and I'll be drawing hot spots for each location to link to the location specific data.
I need to update the locations (desks) on a map when it loads from the DB with shading based on the data I pull from the database. So instead of seeing an all white and black image, you'll see some areas with shading, but the black needs to show.
Am I looking for many transparent images on top of the main image? What should I research?
Thank you,
Patrick
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