brangerbriz / t-snepointselector Goto Github PK

• 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.

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.

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;
  	}