benjbaron

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

benjbaron

#include <QtGui>
#include <QGraphicsRectItem>
#include <QGraphicsView>
#include <QApplication>
#include <QGraphicsSceneMouseEvent>

class CustomItem : public QGraphicsEllipseItem
{
protected:
    void mousePressEvent(QGraphicsSceneMouseEvent *event)

benjbaron

	public static ArrayList<Map<String, String>> readCSV(String filePath) throws IOException {
		InputStream is = new FileInputStream(filePath);
		ArrayList<Map<String, String>> al = new ArrayList<Map<String, String>>();
		BufferedReader br = new BufferedReader(new InputStreamReader(is));
		String[] headerLine = br.readLine().split(","); // reads the header of the file
		String line = br.readLine(); // reads the first line of data
		while (line != null) {
			String[] values = line.split(",");
			Map<String, String> map = new HashMap<String, String>();
			for (int i = 0; i < values.length; i++) {

benjbaron

class CSVParser
{
public:
    CSVParser() {}

    static int parseString(QString &buffer, QStringList &fields, QString delimChars, QString quoteChars, QString escapeChars) {
        QString field;             // String in which to accumulate next field
        bool escaped = false;      // Next char is escaped
        bool quoted = false;       // In quotes
        QChar quoteChar = 0;       // Actual quote character used to open quotes

benjbaron

OGRLineString  * convertFromGEOStoOGR(LineString * ls) {
    OGRLineString * lineString = (OGRLineString*) OGRGeometryFactory::createGeometry(wkbLineString);
    for(int i = 0; i < ls->getNumPoints(); ++i) {
        Point * pt = ls->getPointN(i);
        lineString->addPoint(pt->getX(), pt->getY());
    }
    return lineString;
}

benjbaron

QString checkFile(QString foldername, QStringList exts, QString filename) {
    foreach(auto ext, exts) {
        QFileInfo check(foldername+"/"+filename+"."+ext);
        if(check.exists() && check.isFile())
            return check.absoluteFilePath();
        return QString();
    }
}

benjbaron

void OGRLayer::SetSpatialFilterRect( double dfMinX, double dfMinY,
                                      double dfMaxX, double dfMaxY )

{
     OGRLinearRing  oRing;
     OGRPolygon oPoly;

     oRing.addPoint( dfMinX, dfMinY );
     oRing.addPoint( dfMinX, dfMaxY );
     oRing.addPoint( dfMaxX, dfMaxY );

benjbaron

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

benjbaron

import time
from multiprocessing import Pool
# can also work with ThreadPool, by importing 
# from multiprocessing.dummy import Pool


def f1(a,b):
	print("run f1(%s,%s)" % (a,b))
	time.sleep(2)
	print("end f1")

benjbaron

[github]
  user = benjbaron
[push]
  default = current
[pull]
  rebase = true
[alias]
  st = status
  stp = status --porcelain
  ci = commit --amend --no-edit