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0
votes
1answer
128 views

Picture Symbol Proportion in ESRI Javascript API

I am successfully using a picture marker symbol to represent tree's in a web-map built using the ESRI Javascript API. Is there a method to proportionally size the picture symbol for each scale of the ...
2
votes
0answers
53 views

Bathymetry dataset of Italy

I am looking for a dataset of bathymetrics data of Italy. I shall use them into an application for collision avoidance of vessels into the port. I need to know how deep the sea bottom is in each ...
9
votes
4answers
618 views

Are there any cartography “rules” you should follow when labeling maps?

We've all seen poorly labeled maps before. In these maps, the wording is either illegible or unpleasant to view due to positioning, color choice or size, or the labels take up so much map space that ...
5
votes
2answers
333 views

What does Scale mean in the reference of Desktop GIS or WebGIS?

I'm having trouble understanding the meaning of the concept of scale when it comes to maps on screen, i.e. either in a Desktop GIS or in a WebMap. When it comes to paper maps, the idea is very clear. ...