Map display adjustment method and apparatus

An apparatus for adjusting map display, comprising:

• a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other through the communication bus;
• and
• the memory is configured to store at least one executable instruction, wherein the executable instruction causes the processor to:
• acquire adjustment gesture data in response to receiving an adjustment instruction of a map display page, wherein the adjustment instruction is sent by a user on the map display page by a touch display screen, and the adjustment gesture data at least comprises an adjustment start finger position and an adjustment end finger position;
• analyze the adjustment gesture data to acquire adjustment indexes, wherein the adjustment indexes are configured to identify a position change of an adjustment gesture in a current map display adjustment process;
• and
• according to the adjustment indexes, adjust the map display page at three view angles at the same time:
• zoom-in/zoom-out, rotation in a map parallel plane and rotation in a map tangent plane,
• wherein the processor is further configured to:
• respectively calculate a first center point and a second center point according to the adjustment start gesture position and the adjustment end gesture position, wherein the first center point is a midpoint position of a connecting line of two finger positions at a start of adjustment, and the second center point is a midpoint position of a connecting line of the two finger positions at an end of adjustment;
• calculate a relative displacement of the first center point and the second center point on the touch display screen;
• respectively calculate a first displacement and a second displacement corresponding to the relative displacement, wherein the first displacement is a component of the relative displacement in a horizontal direction of the touch display screen, and the second displacement is a component of the relative displacement in a vertical direction of the touch display screen;
• calculate a first angle and a second angle which respectively correspond to the first displacement and the second displacement according to a preset algorithm;
• and
• rotate the map display page in the map parallel plane according to the first angle and rotate the map display page in the map tangent plane according to the second angle.

A non-transitory computer-readable storage medium, having at least one executable instruction stored therein, wherein the executable instruction causes a processor to:

• acquire adjustment gesture data in response to receiving an adjustment instruction of a map display page, wherein the adjustment instruction is sent by a user on the map display page by a touch display screen, and the adjustment gesture data at least comprises an adjustment start finger position and an adjustment end finger position;
• analyze the adjustment gesture data to acquire adjustment indexes, wherein the adjustment indexes are configured to identify a position change of an adjustment gesture in a current map display adjustment process;
• and
• according to the adjustment indexes, adjust the map display page at three view angles at the same time:
• zoom-in/zoom-out, rotation in a map parallel plane and rotation in a map tangent plane,
• wherein the processor is further configured to:
• respectively calculate a first center point and a second center point according to the adjustment start gesture position and the adjustment end gesture position, wherein the first center point is a midpoint position of a connecting line of two finger positions at a start of adjustment, and the second center point is a midpoint position of a connecting line of the two finger positions at an end of adjustment;
• calculate a relative displacement of the first center point and the second center point on the touch display screen;
• respectively calculate a first displacement and a second displacement corresponding to the relative displacement, wherein the first displacement is a component of the relative displacement in a horizontal direction of the touch display screen, and the second displacement is a component of the relative displacement in a vertical direction of the touch display screen;
• calculate a first angle and a second angle which respectively correspond to the first displacement and the second displacement according to a preset algorithm;
• and
• rotate the map display page in the map parallel plane according to the first angle and rotate the map display page in the map tangent plane according to the second angle.