phplot.php

PHP 建站工具,CMS系统,类似与oscommerce

				break;
				default:
					//Unchanged from whatever format is passed in
					$xlab = $x_tmp;
				break;
			}

			$x_pixels = $this->xtr($x_tmp);

			//Bottom Tick
			ImageLine($this->img,$x_pixels,$this->plot_area[3] + $this->tick_length,
				$x_pixels,$this->plot_area[3], $this->ndx_tick_color);
			//Top Tick
			//ImageLine($this->img,($this->xtr($this->plot_max_x)+$this->tick_length),
			//	$y_pixels,$this->xtr($this->plot_max_x)-1,$y_pixels,$this->ndx_tick_color);

			if ($this->draw_x_grid == 1) {
				ImageLine($this->img,$x_pixels,$this->plot_area[1],
					$x_pixels,$this->plot_area[3], $this->ndx_light_grid_color);
			}

			if ($this->x_datalabel_angle == 90) {  //Vertical Code Submitted by Marlin Viss
 			   ImageStringUp($this->img, $this->small_font,
				( $x_pixels - $this->small_font_height/2),
				( $this->small_font_width*strlen($xlab) + $this->plot_area[3] + $this->small_font_height),$xlab, $this->ndx_text_color);
			} else {
				ImageString($this->img, $this->small_font,
					( $x_pixels - $this->small_font_width*strlen($xlab)/2) ,
					( $this->small_font_height + $this->plot_area[3]),$xlab, $this->ndx_text_color);
			}

			$i++;
			$x_tmp += $delta_x;
		}

	} // function DrawHorizontalTicks

	function FormatYTickLabel($which_ylab) { 
		switch ($this->y_grid_label_type) {
			case "data":
				$ylab = number_format($which_ylab,$this->y_precision,".",",") . "$this->si_units";
			break;
			case "none":
				$ylab = '';
			break;
			case "time":
				$ylab = strftime($this->y_time_format,$which_ylab);
			break;
			case "right":
				//Make it right aligned
				//$ylab = str_pad($which_ylab,$this->y_label_width," ",STR_PAD_LEFT); //PHP4 only
				$sstr = "%".strlen($this->plot_max_y)."s";
				$ylab = sprintf($sstr,$which_ylab);
			break;
			default:
				//Unchanged from whatever format is passed in
				$ylab = $which_ylab;
			break;
		}

		return($ylab);

	} //function FormatYTickLabel

	function DrawVerticalTick($which_ylab,$which_ypos) {  //ylab in world coord.
		//Draw Just one Tick, called from DrawVerticalTicks
		//Ticks and datalables can be left of plot only, right of plot only, 
		//  both on the left and right of plot, or crossing a user defined Y-axis
		// 
		//Its faster to draw both left and right ticks at same time
		//  than first left and then right. 

		if ($this->y_axis_position != "") { 
			//Ticks and lables are drawn on the left border of yaxis
			$yaxis_x = $this->xtr($this->y_axis_position);
		} else { 
			//Ticks and lables are drawn on the left border of PlotArea.
			$yaxis_x = $this->plot_area[0];
		}

		$y_pixels = $this->ytr($which_ypos);

		//Lines Across the Plot Area
		if ($this->draw_y_grid == 1) {
			ImageLine($this->img,$this->plot_area[0]+1,$y_pixels,
				$this->plot_area[2]-1,$y_pixels,$this->ndx_light_grid_color);
		}

		//Ticks to the Left of the Plot Area
		if (($this->vert_tick_position == "plotleft") || ($this->vert_tick_position == "both") ) { 
			ImageLine($this->img,(-$this->tick_length+$yaxis_x),
			$y_pixels,$yaxis_x,
			$y_pixels, $this->ndx_tick_color);
		}

		//Ticks to the Right of the Plot Area
		if (($this->vert_tick_position == "plotright") || ($this->vert_tick_position == "both") ) { 
			ImageLine($this->img,($this->plot_area[2]+$this->tick_length),
			$y_pixels,$this->plot_area[2],
			$y_pixels,$this->ndx_tick_color);
		}

		//Ticks on the Y Axis 
		if (($this->vert_tick_position == "yaxis") ) { 
			ImageLine($this->img,($yaxis_x - $this->tick_length),
			$y_pixels,$yaxis_x,$y_pixels,$this->ndx_tick_color);
		}

		//DataLabel
//ajo working
		//$this->DrawText($this->y_label_ttffont, 0,($yaxis_x - $this->y_label_width - $this->tick_length/2),
		//		$y_pixels, $this->ndx_text_color, $this->axis_ttffont_size, $which_ylab);
		ImageString($this->img, $this->small_font, ($yaxis_x - $this->y_label_width - $this->tick_length/2),
			( -($this->small_font_height/2.0) + $y_pixels),$which_ylab, $this->ndx_text_color);
	}

	function DrawVerticalTicks() {

		if ($this->skip_top_tick != 1) { //If tick increment doesn't hit the top 
			//Left Top
			//ImageLine($this->img,(-$this->tick_length+$this->xtr($this->plot_min_x)),
			//		$this->ytr($this->plot_max_y),$this->xtr($this->plot_min_x),$this->ytr($this->plot_max_y),$this->ndx_tick_color);
			//$ylab = $this->FormatYTickLabel($plot_max_y);

			//Right Top
			//ImageLine($this->img,($this->xtr($this->plot_max_x)+$this->tick_length),
			//		$this->ytr($this->plot_max_y),$this->xtr($this->plot_max_x-1),$this->ytr($this->plot_max_y),$this->ndx_tick_color);

			//Draw Grid Line at Top
			ImageLine($this->img,$this->plot_area[0]+1,$this->ytr($this->plot_max_y),
					$this->plot_area[2]-1,$this->ytr($this->plot_max_y),$this->ndx_light_grid_color);

		}

		if ($this->skip_bottom_tick != 1) { 
			//Right Bottom
			//ImageLine($this->img,($this->xtr($this->plot_max_x)+$this->tick_length),
			//		$this->ytr($this->plot_min_y),$this->xtr($this->plot_max_x),
			//		$this->ytr($this->plot_min_y),$this->ndx_tick_color);

			//Draw Grid Line at Bottom of Plot
			ImageLine($this->img,$this->xtr($this->plot_min_x)+1,$this->ytr($this->plot_min_y),
					$this->xtr($this->plot_max_x),$this->ytr($this->plot_min_y),$this->ndx_light_grid_color);
		}
		
		// maxy is always > miny so delta_y is always positive
		if ($this->vert_tick_increment) {
			$delta_y = $this->vert_tick_increment;
		} elseif ($this->num_vert_ticks) {
			$delta_y = ($this->plot_max_y - $this->plot_min_y) / $this->num_vert_ticks;
		} else {
			$delta_y =($this->plot_max_y - $this->plot_min_y) / 10 ;
		}

		$y_tmp = $this->plot_min_y;
		SetType($y_tmp,'double');
		if ($this->skip_bottom_tick == 1) { 
			$y_tmp += $delta_y;
		}

		while ($y_tmp <= $this->plot_max_y){
			//For log plots: 
			if (($this->yscale_type == "log") && ($this->plot_min_y == 1) && 
				($delta_y%10 == 0) && ($y_tmp == $this->plot_min_y)) { 
				$y_tmp = $y_tmp - 1; //Set first increment to 9 to get: 1,10,20,30,...
			}

			$ylab = $this->FormatYTickLabel($y_tmp);

			$this->DrawVerticalTick($ylab,$y_tmp);

			$y_tmp += $delta_y;
		}

		return true;

	} // function DrawVerticalTicks

	function SetTranslation() {
		if ($this->xscale_type == "log") { 
			$this->xscale = ($this->plot_area_width)/(log10($this->plot_max_x) - log10($this->plot_min_x));
		} else { 
			$this->xscale = ($this->plot_area_width)/($this->plot_max_x - $this->plot_min_x);
		}
		if ($this->yscale_type == "log") { 
			$this->yscale = ($this->plot_area_height)/(log10($this->plot_max_y) - log10($this->plot_min_y));
		} else { 
			$this->yscale = ($this->plot_area_height)/($this->plot_max_y - $this->plot_min_y);
		}

		// GD defines x=0 at left and y=0 at TOP so -/+ respectively
		if ($this->xscale_type == "log") { 
			$this->plot_origin_x = $this->plot_area[0] - ($this->xscale * log10($this->plot_min_x) );
		} else { 
			$this->plot_origin_x = $this->plot_area[0] - ($this->xscale * $this->plot_min_x);
		}
		if ($this->yscale_type == "log") { 
			$this->plot_origin_y = $this->plot_area[3] + ($this->yscale * log10($this->plot_min_y));
		} else { 
			$this->plot_origin_y = $this->plot_area[3] + ($this->yscale * $this->plot_min_y);
		}

		$this->scale_is_set = 1;
	} // function SetTranslation

	function xtr($x_world) {
	//Translate world coordinates into pixel coordinates
	//The pixel coordinates are those of the ENTIRE image, not just the plot_area
		//$x_pixels =  $this->x_left_margin + ($this->image_width - $this->x_tot_margin)*(($x_world - $this->plot_min_x) / ($this->plot_max_x - $this->plot_min_x)) ;
		//which with a little bit of math reduces to ...
		if ($this->xscale_type == "log") { 
			$x_pixels =  $this->plot_origin_x + log10($x_world) * $this->xscale ;
		} else { 
			$x_pixels =  $this->plot_origin_x + $x_world * $this->xscale ;
		}
		return($x_pixels);
	}

	function ytr($y_world) {
		// translate y world coord into pixel coord
		if ($this->yscale_type == "log") { 
			$y_pixels =  $this->plot_origin_y - log10($y_world) * $this->yscale ;  //minus because GD defines y=0 at top. doh!
		} else { 
			$y_pixels =  $this->plot_origin_y - $y_world * $this->yscale ;  
		}
		return ($y_pixels);
	}


	function DrawDataLabel($lab,$x_world,$y_world) {
		//Depreciated. Use DrawText Instead.
		//Data comes in in WORLD coordinates
		//Draw data label near actual data point
			//$y = $this->ytr($y_world) ;  //in pixels
			//$x = $this->xtr($x_world) ;
			//$this->DrawText($which_font,$which_angle,$which_xpos,$which_ypos,$which_color,$which_size,$which_text,$which_halign='left');
			if ($this->use_ttf) {
//ajjjo
				$lab_size = $this->TTFBBoxSize($this->axis_ttffont_size, $this->x_datalabel_angle, $this->axis_ttffont, $lab); //An array
				$y = $this->ytr($y_world) - $lab_size[1] ;  //in pixels
				$x = $this->xtr($x_world) - $lab_size[0]/2;
				ImageTTFText($this->img, $this->axis_ttffont_size, $this->x_datalabel_angle, $x, $y, $this->ndx_text_color, $this->axis_ttffont, $lab);
			} else {
				$lab_size = array($this->small_font_width*StrLen($lab), $this->small_font_height*3);
				if ($this->x_datalabel_angle == 90) {
					$y = $this->ytr($y_world) - $this->small_font_width*StrLen($lab); //in pixels
					$x = $this->xtr($x_world) - $this->small_font_height;
					ImageStringUp($this->img, $this->small_font,$x, $y ,$lab, $this->ndx_text_color);
				} else {
					$y = $this->ytr($y_world) - $this->small_font_height; //in pixels
					$x = $this->xtr($x_world) - ($this->small_font_width*StrLen($lab))/2;
					ImageString($this->img, $this->small_font,$x, $y ,$lab, $this->ndx_text_color);
				}
			}

	}

	function DrawXDataLabel($xlab,$xpos) {
		//xpos comes in in PIXELS not in world coordinates.
		//Draw an x data label centered at xlab
			if ($this->use_ttf) {
				$xlab_size = $this->TTFBBoxSize($this->axis_ttffont_size,
					$this->x_datalabel_angle, $this->axis_ttffont, $xlab); //An array
				$y = $this->plot_area[3] + $xlab_size[1] + 4;  //in pixels
				$x = $xpos - $xlab_size[0]/2;
				ImageTTFText($this->img, $this->axis_ttffont_size,
					$this->x_datalabel_angle, $x, $y, $this->ndx_text_color, $this->axis_ttffont, $xlab);
			} else {
				$xlab_size = array(ImageFontWidth($this->axis_font)*StrLen($xlab), $this->small_font_height*3);
				if ($this->x_datalabel_angle == 90) {
					$y = $this->plot_area[3] + ImageFontWidth($this->axis_font)*StrLen($xlab); //in pixels
					$x = $xpos - ($this->small_font_height);
					ImageStringUp($this->img, $this->axis_font,$x, $y ,$xlab, $this->ndx_text_color);
				} else {
					$y = $this->plot_area[3] + ImageFontHeight($this->axis_font); //in pixels
					$x = $xpos - (ImageFontWidth($this->axis_font)*StrLen($xlab))/2;
					ImageString($this->img, $this->axis_font,$x, $y ,$xlab, $this->ndx_text_color);
				}
			}

	}

	function DrawPieChart() {
		//$pi = '3.14159265358979323846';
		$xpos = $this->plot_area[0] + $this->plot_area_width/2;
		$ypos = $this->plot_area[1] + $this->plot_area_height/2;
		$diameter = (min($this->plot_area_width, $this->plot_area_height)) ;
		$radius = $diameter/2;

		ImageArc($this->img, $xpos, $ypos, $diameter, $diameter, 0, 360, $this->ndx_grid_color);

		$total = 0;
		reset($this->data_values);
		$tmp = $this->number_x_points - 1;
		while (list($j, $row) = each($this->data_values)) {
			//Get sum of each type
			$color_index = 0;
			$i = 0;
			//foreach ($row as $v) 
			while (list($k, $v) = each($row)) {
				if ($k != 0) {
					if ($j == 0) { 
						$sumarr[$i] = $v;
					} elseif ($j < $tmp) { 
						$sumarr[$i] += $v;
					} else { 
						$sumarr[$i] += $v;
					// NOTE!  sum > 0 to make pie charts
						$sumarr[$i] = abs($sumarr[$i]); 
						$total += $sumarr[$i];
					}
				}
			$i++;
			}
		}

		$color_index = 0;
		$start_angle = 0;

		reset($sumarr);
		$end_angle = 0;
		while (list(, $val) = each($sumarr)) {
			if ($color_index >= count($this->ndx_data_color)) $color_index=0;  //data_color = array
			$label_txt = number_format(($val / $total * 100), $this->y_precision, ".", ",") . "%";
			$val = 360 * ($val / $total);

			$end_angle += $val;
			$mid_angle = $end_angle - ($val / 2);

			$slicecol = $this->ndx_data_color[$color_index];

//Need this again for FillToBorder
			ImageArc($this->img, $xpos, $ypos, $diameter, $diameter, 0, 360, $this->ndx_grid_color);

			$out_x = $radius * cos(deg2rad($end_angle));
			$out_y = - $radius * sin(deg2rad($end_angle));

			$mid_x = $xpos + ($radius/2 * cos(deg2rad($mid_angle))) ;
			$mid_y = $ypos + (- $radius/2 * sin(deg2rad($mid_angle)));

			$label_x = $xpos + ($radius * cos(deg2rad($mid_angle))) * $this->label_scale_position;
			$label_y = $ypos + (- $radius * sin(deg2rad($mid_angle))) * $this->label_scale_position;

			$out_x = $xpos + $out_x;
			$out_y = $ypos + $out_y;

			ImageLine($this->img, $xpos, $ypos, $out_x, $out_y, $this->ndx_grid_color);
			//ImageLine($this->img, $xpos, $ypos, $label_x, $label_y, $this->ndx_grid_color);
			ImageFillToBorder($this->img, $mid_x, $mid_y, $this->ndx_grid_color, $slicecol);

			if ($this->use_ttf) {
				ImageTTFText($this->img, $this->axis_ttffont_size, 0, $label_x, $label_y, $this->ndx_grid_color, $this->axis_ttffont, $label_txt);
			} else {
				ImageString($this->img, $this->small_font, $label_x, $label_y, $label_txt, $this->ndx_grid_color);
			}

			$start_angle = $val;

			$color_index++;
		}

	}

	function DrawLinesError() {
		//Draw Lines with Error Bars - data comes in as array("title",x,y,error+,error-,y2,error2+,error2-,...);
		$start_lines = 0;

		reset($this->data_values);
		while (list(, $row) = each($this->data_values)) {
			$color_index = 0;
			$i = 0;

			while (list($key, $val) = each($row)) {
//echo "$key, $i, $val<br>";
				if ($key == 0) {
					$lab = $val;
				} elseif ($key == 1) {
					$x_now = $val;
					$x_now_pixels = $this->xtr($x_now); //Use a bit more memory to save 2N operations.
				} elseif ($key%3 == 2) {
					$y_now = $val;
					$y_now_pixels = $this->ytr($y_now);

					//Draw Data Label
					if ( $this->draw_data_labels == 1) {
						$this->DrawDataLabel($lab,$x_now,$y_now);
					}

					if ($color_index >= count($this->ndx_data_color)) { $color_index=0;};
					$barcol = $this->ndx_data_color[$color_index];
					$error_barcol = $this->ndx_error_bar_color[$color_index];

//echo "start = $start_lines<br>";
					if ($start_lines == 1) {