direction

问题 I found that the Google Maps API supports Directions through: var map; var directionsPanel; var directions; function initialize() { map = new GMap2(document.getElementById("map_canvas")); directionsPanel = document.getElementById("my_textual_div"); map.setCenter(new GLatLng(49.496675,-102.65625), 3); directions = new GDirections(map, directionsPanel); directions.load("from: 500 Memorial Drive, Cambridge, MA to: 4 Yawkey Way, Boston, MA 02215 (Fenway Park)"); } So how can this be translated

问题 in my app i want to use augmented reality to find places like family restaurants etc.. What i want to do is that when i start my app camera turned on and then i want to locate the places in the direction of the camera .for example i start the app and i m facing the east and phone keypad is facing towards me i.e west,then the places which are in east direction. i have written some code which starts the camera, please suggest any api available for this task and example and tutorial to do that

问题 I am using my android phone as Access Point. Now I want to find the distance and direction of the wifi devices connected with my phone. Please help me through suitable example and code. Thanks in advance. 回答1: I downloaded Wifi Radar that you mentioned and tried it. There's an important step there - it asks you to rotate on the spot for a bit while holding the device to your body. So my guess is that it uses the internal compass to figure out which direction you're pointing to, and then

问题 is it possible to get the mouse direction (Left, Right, Up, Down) based on mouse last position and current position? I have written the code to calculate the angle between two vectors but I am not sure if it is right. Can someone please point me to the right direction? public enum Direction { Left = 0, Right = 1, Down = 2, Up = 3 } private int lastX; private int lastY; private Direction direction; private void Form1_MouseDown(object sender, MouseEventArgs e) { lastX = e.X; lastY = e.Y; }

问题 So I have an application that successfully moves a ball (ellipse) left, right, up, or down depending on which button of the keypad is being pressed. However, I'm having trouble getting the ball to move at an angle. I'm trying to do this by saying that if the user holds 2 direction keys, the ball will go in diagonally. For example, If they click the left key and the up key, I want the ball to move in an NorthWest direction. If any of you see what is causing the problem, I'd really appreciate

问题 In my iPhone application, I'm using using CLLocationManager to find the direction in which my iphone is pointing to. I'm using the property "heading". Its giving me x,y and z values. How can I find from these values in which direction (north or south or east or west) I'm currently pointing to? 回答1: heading is a CLHeading object. As one look in the documentation would have told you, it also has properties for the true and magnetic headings in degrees. 回答2: you should use method

问题 In my iPhone application, I'm using using CLLocationManager to find the direction in which my iphone is pointing to. I'm using the property "heading". Its giving me x,y and z values. How can I find from these values in which direction (north or south or east or west) I'm currently pointing to? 回答1: heading is a CLHeading object. As one look in the documentation would have told you, it also has properties for the true and magnetic headings in degrees. 回答2: you should use method

问题 Looking through the documentation, it seems that the new advanced gestures API doesn't determine the direction of a swipe beyond the basic { left, right, up, down }. I need the start point of the swipe and the direction. Is there anyway to retrieve this other than coding my own advanced gesture library from scratch out the basic gestures? And if this is my only option, could anyone point me to some open source code that does this? 回答1: Got it! Documentation is here, under ' Creating Custom

问题 I have an Android app that uses ViewPager and FragmentStatePagerAdapter. I however need to add a new feature in which I have to know the swipe direction to move from one fragment view to another, left or right. (i.e, when I swipe left, I would do one thing, and when I swipe right I would do something else). Please note, I do not need the events to happen AFTER the swipe is over. I have to do those events as the swipe occurs. I thought of using setOnPageChangeListener() but it does not tell me

问题 I want to set the input tag in my HTML document to rtl and their title attributes to ltr. Is it possible? 回答1: I do not believe the direction in which the text of the tooltip is displayed in (which is what I'm guessing what you meant by their title attribute) can be dictated through CSS. The HTML specification simply states that browsers should display it in whatever fashion they wish, so the direction of the text in the tooltip would most likely be dependent on the user's own settings,