brangerbriz / t-snepointselector Goto Github PK

Zooming should always increase one zoom level towards what is currently the center of the window. This functionality is handled inside of src/NavTransformer.cpp and w/ functions being called inside ofApp::draw(). Problem areas include:

• t-SNEPointSelector/src/NavTransformer.cpp

  Lines 18 to 24 in 864e6b3

  	void NavTransformer::begin()
  	{
  	ofPushMatrix();
  	ofTranslate(-_scale_offset);
  	ofTranslate(-_offset);
  	ofScale(ofGetWidth() * _scale, ofGetHeight() * _scale, 0);
  	}

• t-SNEPointSelector/src/NavTransformer.cpp

  Lines 54 to 60 in 864e6b3

  	void NavTransformer::mouseScrolled(ofMouseEventArgs &args)
  	{
  	// float scrollSpeed = 0.1;
  	_scale = args.scrollY == 1 ? _scale * 2.0 : _scale * 0.5;
  	_scale_offset.x = (ofGetWidth() * 0.5) * (_scale - 1);
  	_scale_offset.y = (ofGetHeight() * 0.5) * (_scale - 1);
  	}

Fixes to this will likely require updates to:

• t-SNEPointSelector/src/NavTransformer.cpp

  Lines 31 to 43 in 864e6b3

  	ofPoint NavTransformer::toDataSpace(ofPoint p)
  	{
  	p += _scale_offset + _offset;
  	p /= (ofPoint(ofGetWidth(), ofGetHeight()) * _scale);
  	return p;
  	}
  	ofPoint NavTransformer::fromDataSpace(ofPoint p)
  	{
  	p -= _scale_offset + _offset;
  	p *= (ofPoint(ofGetWidth(), ofGetHeight()) * _scale);
  	return p;
  	}

Hi, brangerbriz!

I solved the problem. It's occurred by the absence of some midi files so that it doesn't match files and .json points. I closed the issue, Thank you.

...........................................................................................................................
I build t-SNEPointSelector well, but when I click a point (midi file) the error message occurred.

Thread 1: EXC_BAD_ACCESS (code=1, address=0x29970)

File name : DataHandler.cpp
string DataHandler::getMidiIdentifier(int index)
{
return _fileIdentifiers[index];
}

Do you have any idea about this?
Your help will be very helpful. Thanks in advance.

• Features csv with id as first column and n features as the rest of the columns
• t-SNE csv with id as first column and and x, y[, z] as the rest of the columns
• Labels csv with first column as id and second column as label. (used for cluster labeling)
• KNN csv with id as first column (multiples allowed), neighbor id as next column, and cosine similarity value as third column.