Convert a 1D index location to the 2D location on the plotting grid
199198
def index_to_loc(self, index):
        
        sz = int(self.shape[0] * self.shape[1])
        idxs = np.array([i for i in range(sz)], dtype=int).reshape(self.shape)
        args = np.argwhere(idxs == index)
        if len(args) < 1:
            raise RuntimeError('Index ({}) is out of range.')
        return args[0]
448515
function drawLinesDataset(axis, animPc, data, config, ctx, offsets, vars) {
		var xAxisPosY = vars.xAxisPosY;
		var yAxisPosX = vars.yAxisPosX;
		var valueHop = vars.valueHop;
		var nbValueHop = vars.nbValueHop;
		var scaleHop = vars.scaleHop;
		var zeroY = vars.zeroY;
		var calculatedScale = vars.calculatedScale;
		var logarithmic = vars.logarithmic;
		var currentAnimPc = animationCorrection(animPc, data, config, 0, 0, 0);
		var totvalue = new Array();
		var maxvalue = new Array();
		var lmaxvalue = new Array();
		var lminvalue = new Array();
		for (var i = 0; i < data.datasets.length; i++) {
			lmaxvalue[i] = -999999999;
			lminvalue[i] = 999999999;
			if ((axis == 2 && data.datasets[i].axis == 2) || (axis != 2 && data.datasets[i].axis != 2)) {
				for (var j = 0; j < data.datasets[i].data.length; j++) {
					totvalue[j] = 0;
					maxvalue[j] = -999999999;
				}
			}
		}
		currentAnimPc.mainVal = 1;
		for (var i = 0; i < data.datasets.length; i++) {
			if ((axis == 2 && data.datasets[i].axis == 2) || (axis != 2 && data.datasets[i].axis != 2)) {
				for (var j = 0; j < data.datasets[i].data.length; j++) {
					totvalue[j] += data.datasets[i].data[j];
					maxvalue[j] = Max([maxvalue[j], data.datasets[i].data[j]]);
					lmaxvalue[i] = Max([lmaxvalue[i], yPos(i, j)]);
					lminvalue[i] = Min([lminvalue[i], yPos(i, j)]);
				}
			}
		}
		for (var i = 0; i < data.datasets.length; i++) {
			if ((axis == 2 && data.datasets[i].axis == 2) || (axis != 2 && data.datasets[i].axis != 2)) {
				var prevpt = -1;
				var frstpt = -1;
				if (typeof data.datasets[i].strokeColor == "function") {
					ctx.strokeStyle = data.datasets[i].strokeColor("STROKECOLOR", data, config, i, -1, animPc, -1, "Line", ctx, yAxisPosX, lmaxvalue[i], yAxisPosX + valueHop * (data.datasets[i].data.length - 1), lmaxvalue[i] - ((config.animationLeftToRight) ? 1 : 1*currentAnimPc.mainVal) * (lmaxvalue[i] - lminvalue[i]));
				} else if (typeof data.datasets[i].strokeColor == "string") {
					ctx.strokeStyle = data.datasets[i].strokeColor;
				} else ctx.strokeStyle = config.defaultStrokeColor;
				ctx.lineWidth = config.datasetStrokeWidth;
				ctx.beginPath();
				var prevAnimPc;
				var prevXpos;
				prevAnimPc = 0;
				prevnotempty = 0;
				for (var j = 0; j < data.datasets[i].data.length; j++) {
					var xposj = xPos(i, j, data);
					currentAnimPc = animationCorrection(animPc, data, config, i, j, 0);
					if (currentAnimPc.mainVal == 0 && prevAnimPc > 0) {
						ctx.stroke();
						ctx.strokeStyle = "rgba(0,0,0,0)";
						//          ctx.lineWidth =0.01;                                                                   
						ctx.lineTo(prevXpos, xAxisPosY - zeroY);
					}
					prevAnimPc = currentAnimPc.mainVal;
					if (currentAnimPc.mainVal >= 1) {
						if (typeof(data.datasets[i].title) == "string") lgtxt = data.datasets[i].title.trim();
						else lgtxt = "";
					}
					if (!(typeof(data.datasets[i].data[j]) == 'undefined')) {
						prevXpos = xPos(i, j, data);
						if (prevpt == -1) {
							ctx.moveTo(xposj, yPos(i, j));
							frstpt = j;
						} else {
							if (config.bezierCurve) {
								ctx.bezierCurveTo(xPos(i, j - (j - prevpt) / 2, data), yPos(i, prevpt), xPos(i, j - (j - prevpt) / 2, data), yPos(i, j), xPos(i, j, data), yPos(i, j));
							} else {
								ctx.lineTo(xPos(i, j, data), yPos(i, j));
							}
						}
						if ((typeof(data.datasets[i].data[j + 1]) !== 'undefined') || (true == config.extrapolateMissingData)) {
							if (currentAnimPc.subVal > 0) {
								// next not missing value
								nxtnotmiss = -1;
								for (t = j + 1; t < data.datasets[i].data["length"] && nxtnotmiss == -1; t++) {
									if (!(typeof(data.datasets[i].data[t]) == 'undefined')) nxtnotmiss = t;
								}
								if (nxtnotmiss != -1) {
									prevXpos = xPos(i, j + currentAnimPc.subVal, data);
									if (config.bezierCurve) {
										ctx.bezierCurveTo(xPos(i, j + currentAnimPc.subVal / 2, data), yPos(i, j), xPos(i, j + currentAnimPc.subVal / 2, data), yPos(i, nxtnotmiss), xPos(i, j + currentAnimPc.subVal, data), yPos(i, nxtnotmiss));
									} else {
										ctx.lineTo(xPos(i, j + currentAnimPc.subVal, data), yPos(i, j + 1));
									}
								}
							}
							prevpt = j;
							if (animPc >= 1) {
								if (i == 0) divprev = data.datasets[i].data[j];
								else divprev = data.datasets[i].data[j] - data.datasets[i - 1].data[j];
								if (i == data.datasets.length - 1) divnext = data.datasets[i].data[j];
								else divnext = data.datasets[i].data[j] - data.datasets[i + 1].data[j];
								lgtxt2 = "";
								if (typeof data.datasets[i].xPos != "undefined") {
									if (!(typeof data.datasets[i].xPos[j] == "undefined")) lgtxt2 = data.datasets[i].xPos[j];
								}
								if (lgtxt2 == "" && !(typeof(data.labels[j]) == "undefined")) lgtxt2 = data.labels[j];
								if (typeof lgtxt2 == "string") lgtxt2 = lgtxt2.trim();
								jsGraphAnnotate[ctx.ChartNewId][jsGraphAnnotate[ctx.ChartNewId].length] = ["POINT", xPos(i, j, data), yPos(i, j), lgtxt, lgtxt2, 1 * data.datasets[i].data[j], divprev, divnext, maxvalue[j], totvalue[j], i, j];
								if (config.inGraphDataShow) {
									ctx.save();
									ctx.textAlign = config.inGraphDataAlign;
									ctx.textBaseline = config.inGraphDataVAlign;
									ctx.font = config.inGraphDataFontStyle + ' ' + config.inGraphDataFontSize + 'px ' + config.inGraphDataFontFamily;
									ctx.fillStyle = config.inGraphDataFontColor;
									var dotX = yAxisPosX + (valueHop * k),
										dotY = xAxisPosY - currentAnimPc.mainVal * (calculateOffset(logarithmic, data.datasets[i].data[j], calculatedScale, scaleHop)),
										paddingTextX = config.inGraphDataPaddingX,
										paddingTextY = config.inGraphDataPaddingY;
									var dispString = tmplbis(config.inGraphDataTmpl, {
										config: config,
										v1: fmtChartJS(config, lgtxt, config.fmtV1),
										v2: fmtChartJS(config, lgtxt2, config.fmtV2),
										v3: fmtChartJS(config, 1 * data.datasets[i].data[j], config.fmtV3),
										v4: fmtChartJS(config, divprev, config.fmtV4),
										v5: fmtChartJS(config, divnext, config.fmtV5),
										v6: fmtChartJS(config, maxvalue[j], config.fmtV6),
										v7: fmtChartJS(config, totvalue[j], config.fmtV7),
										v8: roundToWithThousands(config, fmtChartJS(config, 100 * data.datasets[i].data[j] / totvalue[j], config.fmtV8), config.roundPct),
										v9: fmtChartJS(config, yAxisPosX + (valueHop * k), config.fmtV9),
										v10: fmtChartJS(config, xAxisPosY - (calculateOffset(logarithmic, data.datasets[i].data[j], calculatedScale, scaleHop)), config.fmtV10),
										v11: fmtChartJS(config, i, config.fmtV11),
										v12: fmtChartJS(config, j, config.fmtV12),
										data: data
									});
									ctx.translate(xPos(i, j, data) + paddingTextX, yPos(i, j) - paddingTextY);
									ctx.rotate(config.inGraphDataRotate * (Math.PI / 180));
									ctx.fillTextMultiLine(dispString, 0, 0, ctx.textBaseline, config.inGraphDataFontSize);
									ctx.restore();
								}
							}
						}
					} else {
						if (false == config.extrapolateMissingData) {
							ctx.stroke();
							if (config.datasetFill) {
								ctx.lineTo(prevXpos, xAxisPosY - zeroY);
								ctx.lineTo(xPos(i, frstpt, data), xAxisPosY - zeroY);
								ctx.lineTo(xPos(i, frstpt, data), yPos(i, frstpt));
								ctx.closePath();
								if (typeof data.datasets[i].fillColor == "function") ctx.fillStyle = data.datasets[i].fillColor("FILLCOLOR", data, config, i, -1, currentAnimPc.mainVal, -1, "Line", ctx, yAxisPosX, lmaxvalue[i], yAxisPosX + valueHop * (data.datasets[i].data.length - 1), lmaxvalue[i] - ((config.animationLeftToRight) ? 1 : 1*currentAnimPc.mainVal) * (lmaxvalue[i] - lminvalue[i]));
								else if (typeof data.datasets[i].fillColor == "string") ctx.fillStyle = data.datasets[i].fillColor;
								else ctx.fillStyle = config.defaultFillColor;
								ctx.fill();
							}
							ctx.beginPath();
							prevpt = -1;
							frstpt = -1;
							prevAnimPc = 0;
							prevnotempty = 0;
						} else {
							if (currentAnimPc.subVal > 0) {
								nxtnotmiss = -1;
								for (t = j + 1; t < data.datasets[i].data["length"] && nxtnotmiss == -1; t++) {
									if (!(typeof(data.datasets[i].data[t]) == 'undefined')) nxtnotmiss = t;
								}
								if ((typeof(data.datasets[i].data[j]) !== 'undefined') || (true == config.extrapolateMissingData)) {
									if (nxtnotmiss != -1) {
										prevXpos = xPos(i, j + currentAnimPc.subVal, data);
										if (config.bezierCurve) {
											ctx.bezierCurveTo(xPos(i, prevpt + (j + currentAnimPc.subVal - prevpt) / 2, data), yPos(i, prevpt), xPos(i, prevpt + (j + currentAnimPc.subVal - prevpt) / 2, data), yPos(i, nxtnotmiss), xPos(i, j + currentAnimPc.subVal, data), yPos(i, nxtnotmiss));
										} else {
											ctx.lineTo(xPos(i, j + currentAnimPc.subVal, data), yPos(i, j + 1));
										}
									}
								}
							}
						}
					}
				}
				ctx.stroke();
				if (config.datasetFill) {
					//				ctx.lineTo(yAxisPosX + (valueHop * (data.datasets[i].data.length - 1)), xAxisPosY - zeroY);
					ctx.lineTo(prevXpos, xAxisPosY - zeroY);
					ctx.lineTo(xPos(i, frstpt, data), xAxisPosY - zeroY);
					ctx.lineTo(xPos(i, frstpt, data), yPos(i, frstpt));
					ctx.closePath();
					if (typeof data.datasets[i].fillColor == "function") { ctx.fillStyle = data.datasets[i].fillColor("FILLCOLOR", data, config, i, -1, currentAnimPc.mainVal, -1, "Line", ctx, yAxisPosX, lmaxvalue[i], yAxisPosX + valueHop * (data.datasets[i].data.length - 1), lmaxvalue[i] - ((config.animationLeftToRight) ? 1 : 1*currentAnimPc.mainVal) * (lmaxvalue[i] - lminvalue[i])); }
					else if (typeof data.datasets[i].fillColor == "string") ctx.fillStyle = data.datasets[i].fillColor;
					else ctx.fillStyle = config.defaultFillColor;
					ctx.fill();
				} else {
					ctx.closePath();
				}
				if (config.pointDot) {
					if (typeof data.datasets[i].pointColor == "function") ctx.fillStyle = data.datasets[i].pointColor("POINTCOLOR", data, config, i, -1, animPc, -1, "Line", ctx, yAxisPosX, lmaxvalue[i], yAxisPosX + valueHop * (data.datasets[i].data.length - 1), lmaxvalue[i] - ((config.animationLeftToRight) ? 1 : 1*currentAnimPc.mainVal) * (lmaxvalue[i] - lminvalue[i]));
					else ctx.fillStyle = data.datasets[i].pointColor;
					if (typeof data.datasets[i].pointStrokeColor == "function") ctx.strokeStyle = data.datasets[i].pointStrokeColor("POINTSTROKECOLOR", data, config, i, -1, animPc, -1, "Line", ctx, yAxisPosX, lmaxvalue[i], yAxisPosX + valueHop * (data.datasets[i].data.length - 1), lmaxvalue[i] - ((config.animationLeftToRight) ? 1 : 1*currentAnimPc.mainVal) * (lmaxvalue[i] - lminvalue[i]));
					else ctx.strokeStyle = data.datasets[i].pointStrokeColor;
					ctx.lineWidth = config.pointDotStrokeWidth;
					for (var k = 0; k < data.datasets[i].data.length; k++) {
						if (!(typeof(data.datasets[i].data[k]) == 'undefined')) {
							var currentAnimPc = animationCorrection(animPc, data, config, i, k, 0);
							if (currentAnimPc.mainVal > 0 || !config.animationLeftToRight) {
								ctx.beginPath();
								ctx.arc(xPos(i, k, data), yPos(i, k), config.pointDotRadius, 0, Math.PI * 2, true);
								ctx.fill();
								ctx.stroke();
							}
						}
					}
				}
			}
		};

		function yPos(dataSet, iteration) {
			return xAxisPosY - zeroY - currentAnimPc.mainVal * (calculateOffset(logarithmic, data.datasets[dataSet].data[iteration], calculatedScale, scaleHop) - zeroY);
		};

		function xPos(ival, iteration, data) {
			if (typeof data.datasets[ival].xPos == "object") {
				if (!(typeof data.datasets[ival].xPos[Math.floor(iteration + 0.0001)] == "undefined")) {
					var width = valueHop * nbValueHop;
					var deb = (typeof data.xBegin != "undefined") ? data.xBegin : 1 * data.labels[0];
					var fin = (typeof data.xEnd != "undefined") ? data.xEnd : 1 * data.labels[data.labels.length - 1];
					if (fin <= deb) fin = deb + 100;
					if (1 * data.datasets[ival].xPos[Math.floor(iteration + 0.0001)] >= deb && data.datasets[ival].xPos[Math.floor(iteration + 0.0001)] <= fin) {
						var p1 = yAxisPosX + width * ((1 * data.datasets[ival].xPos[Math.floor(iteration + 0.0001)] - deb) / (fin - deb));
						var p2 = p1;
						if (Math.abs(iteration - Math.floor(iteration + 0.0001)) > 0.0001) {
							var tt = iteration + Math.floor(iteration + 0.0001);
							var p2 = xPos(ival, Math.ceil(iteration - 0.0001), data);
						}
						return p1 + (iteration - Math.floor(iteration + 0.0001)) * (p2 - p1);
					}
				}
			}
			return yAxisPosX + (valueHop * iteration);
		};
	}
1131446
private int pointToGridIdx(Grid grid, float x, float y, float z) {
        Vec3f size = grid.getSize();

        int idx = calcIndex(x, size.getX(), grid.getMin().getX(), grid.getDivision().getX());
        int idy = calcIndex(y, size.getY(), grid.getMin().getY(), grid.getDivision().getY());
        int idz = calcIndex(z, size.getZ(), grid.getMin().getZ(), grid.getDivision().getZ());

        return idx + grid.getDivision().getX() * (idy + grid.getDivision().getY() * idz);
    }
1056247
function (plot, axis, noTicks) {
        var ticks = [],
            minIdx = -1,
            maxIdx = -1,
            surface = plot.getCanvas(),
            logTickValues = PREFERRED_LOG_TICK_VALUES,
            min = clampAxis(axis, plot),
            max = axis.max;

        if (!noTicks) {
            noTicks = 0.3 * Math.sqrt(axis.direction === "x" ? surface.width : surface.height);
        }

        PREFERRED_LOG_TICK_VALUES.some(function (val, i) {
            if (val >= min) {
                minIdx = i;
                return true;
            } else {
                return false;
            }
        });

        PREFERRED_LOG_TICK_VALUES.some(function (val, i) {
            if (val >= max) {
                maxIdx = i;
                return true;
            } else {
                return false;
            }
        });

        if (maxIdx === -1) {
            maxIdx = PREFERRED_LOG_TICK_VALUES.length - 1;
        }

        if (maxIdx - minIdx <= noTicks / 4 && logTickValues.length !== EXTENDED_LOG_TICK_VALUES.length) {
            //try with multiple of 5 for tick values
            logTickValues = EXTENDED_LOG_TICK_VALUES;
            minIdx *= 2;
            maxIdx *= 2;
        }

        var lastDisplayed = null,
            inverseNoTicks = 1 / noTicks,
            tickValue, pixelCoord, tick;

        // Count the number of tick values would appear, if we can get at least
        // nTicks / 4 accept them.
        if (maxIdx - minIdx >= noTicks / 4) {
            for (var idx = maxIdx; idx >= minIdx; idx--) {
                tickValue = logTickValues[idx];
                pixelCoord = (Math.log(tickValue) - Math.log(min)) / (Math.log(max) - Math.log(min));
                tick = tickValue;

                if (lastDisplayed === null) {
                    lastDisplayed = {
                        pixelCoord: pixelCoord,
                        idealPixelCoord: pixelCoord
                    };
                } else {
                    if (Math.abs(pixelCoord - lastDisplayed.pixelCoord) >= inverseNoTicks) {
                        lastDisplayed = {
                            pixelCoord: pixelCoord,
                            idealPixelCoord: lastDisplayed.idealPixelCoord - inverseNoTicks
                        };
                    } else {
                        tick = null;
                    }
                }

                if (tick) {
                    ticks.push(tick);
                }
            }
            // Since we went in backwards order.
            ticks.reverse();
        } else {
            var tickSize = plot.computeTickSize(min, max, noTicks),
                customAxis = {min: min, max: max, tickSize: tickSize};
            ticks = $.plot.linearTickGenerator(customAxis);
        }

        return ticks;
    }
278636
function () {
		var series = this,
			yAxis = series.yAxis,
			pointArrayMap = series.pointArrayMap;

		seriesTypes.column.prototype.translate.apply(series);

		// do the translation on each point dimension
		each(series.points, function (point) {
			each(pointArrayMap, function (key) {
				if (point[key] !== null) {
					point[key + 'Plot'] = yAxis.translate(point[key], 0, 1, 0, 1);
				}
			});
		});
	}
841848
def subplot(self, index_x, index_y):
        
        self._active_renderer_index = self.loc_to_index((index_x, index_y))
430868
def plot_grid(self, **kwargs):
        
        fig, ax = plt.subplots(1, 1)
        self.plot_grid_to_ax(ax, **kwargs)
        return fig, ax
709128
def row_coordinates(self, X):
        
        utils.validation.check_is_fitted(self, 's_')

        # Extract index
        index = X.index if isinstance(X, pd.DataFrame) else None

        # Copy data
        if self.copy:
            X = np.copy(X)

        # Scale data
        if hasattr(self, 'scaler_'):
            X = self.scaler_.transform(X)

        return pd.DataFrame(data=X.dot(self.V_.T), index=index)
527887
def map_pixel_location(self, point_x, point_y):
        '''
        
        '''
        row, col = map_pixel(point_x, point_y, self.x_cell_size, self.y_cell_size,
                             self.xmin, self.ymax)
        return np.array([row, col])
388968
def argsort_indices(a, axis=-1):
    
    a = np.asarray(a)
    ind = list(np.ix_(*[np.arange(d) for d in a.shape]))
    ind[axis] = a.argsort(axis)
    return tuple(ind)
27555
function(index, includeOffset) {
			var me = this;
			if (me.isHorizontal()) {
				var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
				var tickWidth = innerWidth / Math.max((me.ticks.length - ((me.options.gridLines.offsetGridLines) ? 0 : 1)), 1);
				var pixel = (tickWidth * index) + me.paddingLeft;

				if (includeOffset) {
					pixel += tickWidth / 2;
				}

				var finalVal = me.left + Math.round(pixel);
				finalVal += me.isFullWidth() ? me.margins.left : 0;
				return finalVal;
			}
			var innerHeight = me.height - (me.paddingTop + me.paddingBottom);
			return me.top + (index * (innerHeight / (me.ticks.length - 1)));
		}
750908
def coord_grid(self):
        """"""

        ra2 = math.pi * 2
        ra1 = 0
        dec1 = -1 * math.pi / 2.0
        dec2 = math.pi / 2.0

        dra = math.fabs((self.x2 - self.x1) / 4.0)
        ddec = math.fabs((self.y2 - self.y1) / 4.0)
        logging.debug("Drawing the grid.")
        label = True
        ra = ra1
        while ra <= ra2:
            # create a line that goes from dec1 to dec2 at this ra
            (cx1, cy1) = self.p2c((ra, dec1))
            # ly is the y location mid-way between the top and bottom of the plot
            (cx2, cy2) = self.p2c((ra, dec2))
            # create a dashed line for un-labeled lines
            self.create_line(cx1, cy1, cx2, cy2, dash=(20, 20), fill="grey")
            dec = dec1
            while dec <= dec2:
                if label:
                    # lx is the the x screen coordinate location of the ra
                    (lx, ly) = self.p2c((ra, dec + ddec / 2.0))
                    self.create_text(lx + 5, ly, justify=LEFT,
                                     font=('Times', '-20'),
                                     text="\n".join(str(ephem.hours(ra))[:-3]), fill='grey')
                label = not label
                dec += ddec
            ra += dra

        # plot dec grid lines bewtween South (dec1) and North (dec2) limits of plot
        dec = dec1
        # should we label the current grid line?
        label = True
        while dec <= dec2:
            # create a line the goes from ra1 to ra2 at this dec
            (cx1, cy1) = self.p2c((ra1, dec))
            (cx2, cy2) = self.p2c((ra2, dec))
            self.create_line(cx1, cy1, cx2, cy2, dash=(20, 20), fill='grey')
            ra = ra1
            while ra <= ra2:
                if label:
                    # lx/ly are the screen coordinates of the label
                    (lx, ly) = self.p2c((ra + dra / 2.0, dec))
                    self.create_text(lx, ly - 5, font=('Times', '-20'),
                                     text=str(ephem.degrees(dec)), fill='grey')
                ra += dra
            dec += ddec
            label = not label
1286989
def _ixs(self, i, axis=0):
        
        # irow
        if axis == 0:
            if isinstance(i, slice):
                return self[i]
            else:
                label = self.index[i]
                if isinstance(label, Index):
                    # a location index by definition
                    result = self.take(i, axis=axis)
                    copy = True
                else:
                    new_values = self._data.fast_xs(i)
                    if is_scalar(new_values):
                        return new_values

                    # if we are a copy, mark as such
                    copy = (isinstance(new_values, np.ndarray) and
                            new_values.base is None)
                    result = self._constructor_sliced(new_values,
                                                      index=self.columns,
                                                      name=self.index[i],
                                                      dtype=new_values.dtype)
                result._set_is_copy(self, copy=copy)
                return result

        # icol
        else:
            label = self.columns[i]
            if isinstance(i, slice):
                # need to return view
                lab_slice = slice(label[0], label[-1])
                return self.loc[:, lab_slice]
            else:
                if isinstance(label, Index):
                    return self._take(i, axis=1)

                index_len = len(self.index)

                # if the values returned are not the same length
                # as the index (iow a not found value), iget returns
                # a 0-len ndarray. This is effectively catching
                # a numpy error (as numpy should really raise)
                values = self._data.iget(i)

                if index_len and not len(values):
                    values = np.array([np.nan] * index_len, dtype=object)
                result = self._box_col_values(values, label)

                # this is a cached value, mark it so
                result._set_as_cached(label, self)

                return result
1110039
def get_axis_grid(self, ind):
        
        ng = self.dim
        num_pts = ng[ind]
        lengths = self.structure.lattice.abc
        return [i / num_pts * lengths[ind] for i in range(num_pts)]
1254745
public void imageToGrid( Point2D_F64 pixel , Point2D_F64 grid ) {
		transformGrid.imageToGrid(pixel.x, pixel.y, grid);
	}
1339931
function coordinates(index, source) {
    if (!index || !source)
        return void 0;

    var lines = source
            .slice(0, index)
            .split('\n');

    return lines.length + ':' + lines.pop().length;
}
812902
def compute_coordinates(self):
        
        self._x, self._y = self.board.index_to_coordinates(self.index)