jimtrue.com : school : CJT2240 : 2003-05-29: Core, Ridge Counting

Posted by Jim True on May 22, 2003 6:05 AM. Last Updated October 22, 2006 9:23 PM

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2003-05-29: Core, Ridge Counting

CORE

The Core indicates the center of the pattern. Core is placed upon or within the innermost sufficient recurve.

  1. Core is located on the shoulder of the innermost loop farthest from the delta.
  2. Core is located on the spike or rod in the center of the innermost recurve, provided, the spike or rod rises as high as the shoulders.
  3. If there are an even number of spikes or rods as high as the shoulders, the core is located on the end of farthest of the innermost spikes from the delta, whether or not the spike or rod touches the inside of the curve.

    4. If you have an even number, you're looking for the innermost set of spikes and select the one spike of the pair farthest from the delta.

  4. If there are an odd number of spikes or rods as high as the shoulders, the core is located on the end of the center spike, whether or not the spike or rod touches the inside of the recurve.
  5. Interlocking Loops: Join the two loops together by an imaginary recurve, making one loop with rod or rods inside, count number of rod or rods shoulder high in order to locate the core.

RIDGE COUNTING

Draw a line between delta and core. If the line touches or crosses the a ridge, there is a ridge count.

  1. One ridge must be a looping ridge
  2. Delta and core are not counted.
  3. Fragments and dots are counted as ridges only if they appear as thick as the surrounding ridges. TEST QUESTION
  4. If you cross a bifurcation, count each of its arms.
  5. If the delta is located on the only looping ridge, there is no ridge count.
  6. White space must intervene between delta and the first ridge count.
  7. If the delta is located above the shoulders of a single looping ridge, and the core is on the shoulder, there is no ridge count unless the imaginary line cuts the recurve.
    1. If the looping ridge is above the delta, the core is placed in the center of the recurve, provided the shoulders are of equal distance from the delta.
    2. If a rod or spike is as high as the shoulders, the core is placed on the end of the rod.
  8. Natural and unnatural breaks in rides, the distinction is up to the judgement of the individual classifier.
  9. When the core is placed on a spike which touches the inside of the inner

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