0

有一些问题让它在 IE 中工作。我基本上从 MySQL 数据库中提取一些列来为此 jscript 代码生成动态值。它似乎在 Firefox 等中运行良好，但在 IE 中不行。检查语法，寻找额外的逗号或 IE 可能不喜欢的不友好的额外内容，在这里旋转我的轮子......这是代码，提前谢谢：

<script src="jquery-1.7.2.min.js"></script>
        <script>
            var graph;
            var xPadding = 45;
            var yPadding = 45;

            var data = { values:[

            <?php 

            include("mysqlconn.php"); 

            $result = mysql_query("SELECT DISTINCT kioskName FROM tbllogs ORDER BY kioskName ASC"); 

            while($row = mysql_fetch_array($result)) {

            $kioskname = $row['kioskName']; 

            $result1 = mysql_query("SELECT kioskName FROM tbllogs WHERE kioskName = '$kioskname'"); 

            $numrows1 = mysql_num_rows($result1); 

            if($numrows1!=0) { ?>

                { X: "<?php echo $kioskname; ?>", Y: <?php echo $numrows1; ?> },

            <?php } else { ?>

                { X: "<?php echo $kioskname; ?>", Y: 0 },

            <?php } 

            }
            ?>

            ]};

            // Returns the max Y value in our data list
            function getMaxY() {
                var max = 0;
                for(var i = 0; i < data.values.length; i ++) {
                    if(data.values[i].Y > max) {
                        max = data.values[i].Y;
                    }
                }
                max += 10 - max % 10;
                return max;
            }

            // Return the x pixel for a graph point
            function getXPixel(val) {
                return ((graph.width() - xPadding) / data.values.length) * val + (xPadding * 1.5);
            }

            // Return the y pixel for a graph point
            function getYPixel(val) {
                return graph.height() - (((graph.height() - yPadding) / getMaxY()) * val) - yPadding;
            }

            $(document).ready(function() {
                graph = $('#graph');
                var c = graph[0].getContext('2d');            

                c.lineWidth = 2;
                c.strokeStyle = '#333';
                c.font = 'italic 8pt sans-serif';
                c.textAlign = "center";

                // Draw the axises
                c.beginPath();
                c.moveTo(xPadding, 0);
                c.lineTo(xPadding, graph.height() - yPadding);
                c.lineTo(graph.width(), graph.height() - yPadding);
                c.stroke();

                // Draw the X value texts
                for(var i = 0; i < data.values.length; i ++) {
                    c.fillText(data.values[i].X, getXPixel(i), graph.height() - yPadding + 20);
                }

                // Draw the Y value texts
                c.textAlign = "right";
                c.textBaseline = "middle";

                for(var i = 0; i < getMaxY(); i += 10) {
                    c.fillText(i, xPadding - 10, getYPixel(i));
                }

                c.strokeStyle = '#f00';

                // Draw the line graph
                c.beginPath();
                c.moveTo(getXPixel(0), getYPixel(data.values[0].Y));
                for(var i = 1; i < data.values.length; i ++) {
                    c.lineTo(getXPixel(i), getYPixel(data.values[i].Y));
                }
                c.stroke();

                // Draw the dots
                c.fillStyle = '#333';

                for(var i = 0; i < data.values.length; i ++) {  
                    c.beginPath();
                    c.arc(getXPixel(i), getYPixel(data.values[i].Y), 4, 0, Math.PI * 2, true);
                    c.fill();
                }
            });
        </script>

有什么想法吗？

4

1 回答 1

0

好吧，canvas并且getContext仅在 IE9+ 中受支持；如果是这样的话，也许改用拉斐尔？

于 2012-07-08T07:57:49.290 回答