Above it all 2.0 Can you relate?

                         photo courtesy Belle Marko

How about photos, then? Do photos work for maps? For communication of design ideas, sharing a photo does not guarantee mutual understanding of the subject depicted. Depending on the desired outcome, one may have to add –or subtract– elements to make a story clearer to an intended audience. This photo elicits my awe and admiration for the engineering of the Golden Gate Bridge. It may not engage the Egyptian brick-maker from the last post. He may have never seen a sea from on high, nor would he know that each of those light blobs can carry a family of six. What would he make of this image? If one could reach across a 3500-year culture gap, what addition to this image would tell the brick-maker what's going on in this photo? 

We think of photos as carrying real information, because a camera reports everything in its field of view. Sometimes that's no help. The same view in fog, at dawn, or at high noon looks very different. A photo is merely a flat extraction of 3D data, whether taken from a satellite, a roaming van, or the end of a laparoscope. It's an abstract field of texture and color, unless it indicates scale or depicts a familiar item that gives the viewer a sense of his or her size in relation to the scene. 

I'm glad my GPS doesn't send me "real" aerial photos for navigation! It reduces visual data to fewer colors, some arrows and scale indicators, and I can quickly choose a path.