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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">Good afternoon.</span><br>
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<div class="x_x_ContentPasted0">I'm Juan Pablo Moreno. </div>
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<div class="x_x_ContentPasted0">I have to develop a plugin for QGIS that calculates the orographic prominence of the hills and then goes on to classify the points.</div>
<div class="x_x_ContentPasted0">I will now explain my idea more slowly.</div>
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<div class="x_x_ContentPasted0">1º The plugin must load an MDT.</div>
<div class="x_x_ContentPasted0">2º Locate hills by analysis of each cell of the MDT and those of its surroundings. I locate a cell and if the surroundings are of lower level it will be a possible hill, the holes would be the other way around.</div>
<div class="x_x_ContentPasted0">3º Calculation of the orographic prominence of each hill.</div>
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<span class="x_x_elementToProof x_x_ContentPasted0 x_x_ContentPasted1" style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"><span> </span><u>Prominence:</u><br class="x_x_ContentPasted1">
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<span class="x_x_elementToProof x_x_ContentPasted0 x_x_ContentPasted1" style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> The
<b>prominence </b>of a mountain is a notion used in orography for the classification of mountains. It is defined as the minimum slope that must be descended from the top of a mountain to ascend to a higher one. The more prominent a mountain is, the more it
will stand out among those around it, regardless of its altitude.<br>
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<span class="x_x_x_x_x_ContentPasted1" style="font-size: 14px; font-family: sans-serif; margin: 0px; display: inline !important; color: rgb(32, 33, 34); background-color: rgb(255, 255, 255);"><span class="x_x_x_x_ContentPasted0" style="margin:0px"> </span><span class="x_x_x_x_ContentPasted0" style="margin:0px"> <span> </span><span class="x_x_ContentPasted2"> <b>Prominence
= mountain altitude - altitude minimum point</b></span></span><br class="x_x_x_x_ContentPasted0">
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<span class="x_x_x_x_x_ContentPasted1" style="font-size: 14px; font-family: sans-serif; margin: 0px; display: inline !important; color: rgb(32, 33, 34); background-color: rgb(255, 255, 255);"><span class="x_x_x_x_ContentPasted0" style="margin:0px"> </span><img class="x_x_x_x_x_ContentPasted2 x_x_x_x_x_w-382 x_x_x_x_x_h-391 x_x_x_x_Do8Zj x_x_x_x_ContentPasted0 x_x_x_x_w-382 x_x_x_x_h-391" size="43302" style="margin:0px; max-width:100%; min-width:auto; min-height:auto; height:auto" data-outlook-trace="F:6|T:6" src="cid:134c04d1-db0c-4fb6-becb-4ec2ae026d73"><br class="x_x_x_x_ContentPasted0">
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<span class="x_x_x_x_x_ContentPasted1 x_x_x_x_ContentPasted0 x_x_ContentPasted3 x_x_ContentPasted4" style="font-size: 14px; font-family: sans-serif; margin: 0px; display: inline !important; color: rgb(32, 33, 34); background-color: rgb(255, 255, 255);">To calculate
the prominence, a program would have to be developed that did something similar to the following:
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<span class="x_x_x_x_x_ContentPasted1 x_x_x_x_ContentPasted0 x_x_ContentPasted3 x_x_ContentPasted4" style="font-size: 14px; font-family: sans-serif; margin: 0px; display: inline !important; color: rgb(32, 33, 34); background-color: rgb(255, 255, 255);">An analogy
widely used to explain these relationships and, incidentally, to illustrate a possible procedure for detecting hills and hills, alludes to the myth of the universal flood. We imagine that the earth has been flooded under a thick blanket of water that covers
it completely, without leaving a single piece of land emerged. After the end of the flood, the evaporation of water causes small islands to begin to emerge. The first to appear is the summit of Everest and the following, other summits of the Himalayas. As
the sea level drops due to evaporation, the surface area occupied by each island increases and there comes a time when the level is low enough for the island to merge with another land mass through some isthmus that has been exposed.</span><span class="x_x_ContentPasted5" style="font-family: sans-serif; font-size: 14px; color: rgb(32, 33, 34);"> The
exact point at which the connection of two islands occurs coincides with a col and is associated with the summit of the lower altitude island to determine its prominence. The value is obtained from the difference in height between the hill and the associated
hill, as can be seen from its definition.</span></div>
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<font face="sans-serif" style="color: rgb(32, 33, 34);"><span class="x_x_x_x_ContentPasted0 x_x_ContentPasted6" style="font-size:14px; margin:0px">We apologize for the inconvenience.
<div class="x_x_ContentPasted6">If you find the subject interesting or were so kind as to guide me a little?, tell me if it sounds like something or know something similar?, give me some advice on where or how to start?, or if you have another idea on the subject,
I am very lost in python programming and everything would be very helpful, I would be very grateful.</div>
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<div class="x_x_ContentPasted6">Thank you very much for everything.</div>
Best regards.</span></font></div>
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